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Finding the Fourth Proportional to 99,323.49, 137,069.11 and 54,004.52

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Solution

The fourth proportional to 99,323.49, 137,069.11 and 54,004.52 is: 74,527.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,323.49 : 137,069.11 = 54,004.52 : x
  2. Step 2: Convert to fraction form
    99,323.49/137,069.11 = 54,004.52/x
  3. Step 3: Cross multiply
    99,323.49x = 137,069.11 × 54,004.52
  4. Step 4: Simplify right side
    99,323.49x = 7,402,351,492.38
  5. Step 5: Solve for x
    x = 7,402,351,492.38/99,323.49
  6. Step 6: Final answer
    x = 74,527.70

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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.