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Finding the Fourth Proportional to 130,440.52, 180,002.78 and 73,851.90

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Solution

The fourth proportional to 130,440.52, 180,002.78 and 73,851.90 is: 101,912.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,440.52 : 180,002.78 = 73,851.90 : x
  2. Step 2: Convert to fraction form
    130,440.52/180,002.78 = 73,851.90/x
  3. Step 3: Cross multiply
    130,440.52x = 180,002.78 × 73,851.90
  4. Step 4: Simplify right side
    130,440.52x = 13,293,547,308.28
  5. Step 5: Solve for x
    x = 13,293,547,308.28/130,440.52
  6. Step 6: Final answer
    x = 101,912.71

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