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Finding the Fourth Proportional to 64,411.40, 96,617.10 and 62,078.60

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Solution

The fourth proportional to 64,411.40, 96,617.10 and 62,078.60 is: 93,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,411.40 : 96,617.10 = 62,078.60 : x
  2. Step 2: Convert to fraction form
    64,411.40/96,617.10 = 62,078.60/x
  3. Step 3: Cross multiply
    64,411.40x = 96,617.10 × 62,078.60
  4. Step 4: Simplify right side
    64,411.40x = 5,997,854,304.06
  5. Step 5: Solve for x
    x = 5,997,854,304.06/64,411.40
  6. Step 6: Final answer
    x = 93,117.90

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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.