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Finding the Fourth Proportional to 101,751.17, 140,417.01 and 56,433.38

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Solution

The fourth proportional to 101,751.17, 140,417.01 and 56,433.38 is: 77,878.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,751.17 : 140,417.01 = 56,433.38 : x
  2. Step 2: Convert to fraction form
    101,751.17/140,417.01 = 56,433.38/x
  3. Step 3: Cross multiply
    101,751.17x = 140,417.01 × 56,433.38
  4. Step 4: Simplify right side
    101,751.17x = 7,924,205,781.71
  5. Step 5: Solve for x
    x = 7,924,205,781.71/101,751.17
  6. Step 6: Final answer
    x = 77,878.28

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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.