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Finding the Fourth Proportional to 101,897.59, 140,615.61 and 55,957.15

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Solution

The fourth proportional to 101,897.59, 140,615.61 and 55,957.15 is: 77,219.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,897.59 : 140,615.61 = 55,957.15 : x
  2. Step 2: Convert to fraction form
    101,897.59/140,615.61 = 55,957.15/x
  3. Step 3: Cross multiply
    101,897.59x = 140,615.61 × 55,957.15
  4. Step 4: Simplify right side
    101,897.59x = 7,868,448,781.11
  5. Step 5: Solve for x
    x = 7,868,448,781.11/101,897.59
  6. Step 6: Final answer
    x = 77,219.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.