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Finding the Fourth Proportional to 144,058.40, 216,087.60 and 73,944.80

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Solution

The fourth proportional to 144,058.40, 216,087.60 and 73,944.80 is: 110,917.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,058.40 : 216,087.60 = 73,944.80 : x
  2. Step 2: Convert to fraction form
    144,058.40/216,087.60 = 73,944.80/x
  3. Step 3: Cross multiply
    144,058.40x = 216,087.60 × 73,944.80
  4. Step 4: Simplify right side
    144,058.40x = 15,978,554,364.48
  5. Step 5: Solve for x
    x = 15,978,554,364.48/144,058.40
  6. Step 6: Final answer
    x = 110,917.20

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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.