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Finding the Fourth Proportional to 101,807.73, 140,502.38 and 56,494.29

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Solution

The fourth proportional to 101,807.73, 140,502.38 and 56,494.29 is: 77,966.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,807.73 : 140,502.38 = 56,494.29 : x
  2. Step 2: Convert to fraction form
    101,807.73/140,502.38 = 56,494.29/x
  3. Step 3: Cross multiply
    101,807.73x = 140,502.38 × 56,494.29
  4. Step 4: Simplify right side
    101,807.73x = 7,937,582,201.41
  5. Step 5: Solve for x
    x = 7,937,582,201.41/101,807.73
  6. Step 6: Final answer
    x = 77,966.40

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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.