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Finding the Fourth Proportional to 59,392.90, 89,105.75 and 52,864.70

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Solution

The fourth proportional to 59,392.90, 89,105.75 and 52,864.70 is: 79,311.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,392.90 : 89,105.75 = 52,864.70 : x
  2. Step 2: Convert to fraction form
    59,392.90/89,105.75 = 52,864.70/x
  3. Step 3: Cross multiply
    59,392.90x = 89,105.75 × 52,864.70
  4. Step 4: Simplify right side
    59,392.90x = 4,710,548,742.03
  5. Step 5: Solve for x
    x = 4,710,548,742.03/59,392.90
  6. Step 6: Final answer
    x = 79,311.65

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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.