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Finding the Fourth Proportional to 102,528.80, 141,463.02 and 60,064.52

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Solution

The fourth proportional to 102,528.80, 141,463.02 and 60,064.52 is: 82,873.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,528.80 : 141,463.02 = 60,064.52 : x
  2. Step 2: Convert to fraction form
    102,528.80/141,463.02 = 60,064.52/x
  3. Step 3: Cross multiply
    102,528.80x = 141,463.02 × 60,064.52
  4. Step 4: Simplify right side
    102,528.80x = 8,496,908,394.05
  5. Step 5: Solve for x
    x = 8,496,908,394.05/102,528.80
  6. Step 6: Final answer
    x = 82,873.38

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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.