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Finding the Fourth Proportional to 113,391.90, 156,482.28 and 62,410.50

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Solution

The fourth proportional to 113,391.90, 156,482.28 and 62,410.50 is: 86,127.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,391.90 : 156,482.28 = 62,410.50 : x
  2. Step 2: Convert to fraction form
    113,391.90/156,482.28 = 62,410.50/x
  3. Step 3: Cross multiply
    113,391.90x = 156,482.28 × 62,410.50
  4. Step 4: Simplify right side
    113,391.90x = 9,766,137,335.94
  5. Step 5: Solve for x
    x = 9,766,137,335.94/113,391.90
  6. Step 6: Final answer
    x = 86,127.29

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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.