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Finding the Fourth Proportional to 103,287.45, 154,932.55 and 58,861.28

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Solution

The fourth proportional to 103,287.45, 154,932.55 and 58,861.28 is: 88,292.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,287.45 : 154,932.55 = 58,861.28 : x
  2. Step 2: Convert to fraction form
    103,287.45/154,932.55 = 58,861.28/x
  3. Step 3: Cross multiply
    103,287.45x = 154,932.55 × 58,861.28
  4. Step 4: Simplify right side
    103,287.45x = 9,119,528,446.84
  5. Step 5: Solve for x
    x = 9,119,528,446.84/103,287.45
  6. Step 6: Final answer
    x = 88,292.70

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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.