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Finding the Fourth Proportional to 99,584.65, 137,425.07 and 54,262.95

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Solution

The fourth proportional to 99,584.65, 137,425.07 and 54,262.95 is: 74,881.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,584.65 : 137,425.07 = 54,262.95 : x
  2. Step 2: Convert to fraction form
    99,584.65/137,425.07 = 54,262.95/x
  3. Step 3: Cross multiply
    99,584.65x = 137,425.07 × 54,262.95
  4. Step 4: Simplify right side
    99,584.65x = 7,457,089,702.16
  5. Step 5: Solve for x
    x = 7,457,089,702.16/99,584.65
  6. Step 6: Final answer
    x = 74,881.92

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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.