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Finding the Fourth Proportional to 76,165.92, 105,011.51 and 52,251.08

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Solution

The fourth proportional to 76,165.92, 105,011.51 and 52,251.08 is: 72,039.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,165.92 : 105,011.51 = 52,251.08 : x
  2. Step 2: Convert to fraction form
    76,165.92/105,011.51 = 52,251.08/x
  3. Step 3: Cross multiply
    76,165.92x = 105,011.51 × 52,251.08
  4. Step 4: Simplify right side
    76,165.92x = 5,486,964,023.62
  5. Step 5: Solve for x
    x = 5,486,964,023.62/76,165.92
  6. Step 6: Final answer
    x = 72,039.62

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1.5x scale

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.