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Finding the Fourth Proportional to 130,397.60, 179,690.64 and 92,565.92

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Solution

The fourth proportional to 130,397.60, 179,690.64 and 92,565.92 is: 127,557.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,397.60 : 179,690.64 = 92,565.92 : x
  2. Step 2: Convert to fraction form
    130,397.60/179,690.64 = 92,565.92/x
  3. Step 3: Cross multiply
    130,397.60x = 179,690.64 × 92,565.92
  4. Step 4: Simplify right side
    130,397.60x = 16,633,229,406.99
  5. Step 5: Solve for x
    x = 16,633,229,406.99/130,397.60
  6. Step 6: Final answer
    x = 127,557.79

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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.