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Finding the Fourth Proportional to 59,157, 88,691.76 and 19,690.56

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Solution

The fourth proportional to 59,157, 88,691.76 and 19,690.56 is: 29,521.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,157 : 88,691.76 = 19,690.56 : x
  2. Step 2: Convert to fraction form
    59,157/88,691.76 = 19,690.56/x
  3. Step 3: Cross multiply
    59,157x = 88,691.76 × 19,690.56
  4. Step 4: Simplify right side
    59,157x = 1,746,390,421.79
  5. Step 5: Solve for x
    x = 1,746,390,421.79/59,157
  6. Step 6: Final answer
    x = 29,521.28

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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.