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Finding the Fourth Proportional to 99,527.76, 137,329.41 and 63,235.08

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Solution

The fourth proportional to 99,527.76, 137,329.41 and 63,235.08 is: 87,252.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,527.76 : 137,329.41 = 63,235.08 : x
  2. Step 2: Convert to fraction form
    99,527.76/137,329.41 = 63,235.08/x
  3. Step 3: Cross multiply
    99,527.76x = 137,329.41 × 63,235.08
  4. Step 4: Simplify right side
    99,527.76x = 8,684,036,227.70
  5. Step 5: Solve for x
    x = 8,684,036,227.70/99,527.76
  6. Step 6: Final answer
    x = 87,252.40

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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.