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Finding the Fourth Proportional to 64,565.12, 88,914.48 and 58,136.96

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Solution

The fourth proportional to 64,565.12, 88,914.48 and 58,136.96 is: 80,062.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,565.12 : 88,914.48 = 58,136.96 : x
  2. Step 2: Convert to fraction form
    64,565.12/88,914.48 = 58,136.96/x
  3. Step 3: Cross multiply
    64,565.12x = 88,914.48 × 58,136.96
  4. Step 4: Simplify right side
    64,565.12x = 5,169,217,567.18
  5. Step 5: Solve for x
    x = 5,169,217,567.18/64,565.12
  6. Step 6: Final answer
    x = 80,062.08

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Why These Related Problems?

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