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Finding the Fourth Proportional to 81,565.32, 112,623.88 and 52,898.64

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Solution

The fourth proportional to 81,565.32, 112,623.88 and 52,898.64 is: 73,041.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,565.32 : 112,623.88 = 52,898.64 : x
  2. Step 2: Convert to fraction form
    81,565.32/112,623.88 = 52,898.64/x
  3. Step 3: Cross multiply
    81,565.32x = 112,623.88 × 52,898.64
  4. Step 4: Simplify right side
    81,565.32x = 5,957,650,083.52
  5. Step 5: Solve for x
    x = 5,957,650,083.52/81,565.32
  6. Step 6: Final answer
    x = 73,041.46

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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.