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Finding the Fourth Proportional to 169,897.20, 254,845.80 and 51,562.80

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Solution

The fourth proportional to 169,897.20, 254,845.80 and 51,562.80 is: 77,344.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,897.20 : 254,845.80 = 51,562.80 : x
  2. Step 2: Convert to fraction form
    169,897.20/254,845.80 = 51,562.80/x
  3. Step 3: Cross multiply
    169,897.20x = 254,845.80 × 51,562.80
  4. Step 4: Simplify right side
    169,897.20x = 13,140,563,016.24
  5. Step 5: Solve for x
    x = 13,140,563,016.24/169,897.20
  6. Step 6: Final answer
    x = 77,344.20

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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.