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Finding the Fourth Proportional to 98,854.31, 148,131.81 and 65,454.77

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Solution

The fourth proportional to 98,854.31, 148,131.81 and 65,454.77 is: 98,083.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,854.31 : 148,131.81 = 65,454.77 : x
  2. Step 2: Convert to fraction form
    98,854.31/148,131.81 = 65,454.77/x
  3. Step 3: Cross multiply
    98,854.31x = 148,131.81 × 65,454.77
  4. Step 4: Simplify right side
    98,854.31x = 9,695,932,812.57
  5. Step 5: Solve for x
    x = 9,695,932,812.57/98,854.31
  6. Step 6: Final answer
    x = 98,083.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.