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Finding the Fourth Proportional to 64,264.80, 96,397.20 and 63,681.60

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Solution

The fourth proportional to 64,264.80, 96,397.20 and 63,681.60 is: 95,522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,264.80 : 96,397.20 = 63,681.60 : x
  2. Step 2: Convert to fraction form
    64,264.80/96,397.20 = 63,681.60/x
  3. Step 3: Cross multiply
    64,264.80x = 96,397.20 × 63,681.60
  4. Step 4: Simplify right side
    64,264.80x = 6,138,727,931.52
  5. Step 5: Solve for x
    x = 6,138,727,931.52/64,264.80
  6. Step 6: Final answer
    x = 95,522.40

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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.