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Finding the Fourth Proportional to 220,126,101.60, 330,189,152.40 and 169,264,840.80

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Solution

The fourth proportional to 220,126,101.60, 330,189,152.40 and 169,264,840.80 is: 253,897,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,126,101.60 : 330,189,152.40 = 169,264,840.80 : x
  2. Step 2: Convert to fraction form
    220,126,101.60/330,189,152.40 = 169,264,840.80/x
  3. Step 3: Cross multiply
    220,126,101.60x = 330,189,152.40 × 169,264,840.80
  4. Step 4: Simplify right side
    220,126,101.60x = 55,889,414,314,872,936
  5. Step 5: Solve for x
    x = 55,889,414,314,872,936/220,126,101.60
  6. Step 6: Final answer
    x = 253,897,261.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.