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Finding the Fourth Proportional to 99,624.50, 137,480.93 and 54,302.48

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Solution

The fourth proportional to 99,624.50, 137,480.93 and 54,302.48 is: 74,936.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,624.50 : 137,480.93 = 54,302.48 : x
  2. Step 2: Convert to fraction form
    99,624.50/137,480.93 = 54,302.48/x
  3. Step 3: Cross multiply
    99,624.50x = 137,480.93 × 54,302.48
  4. Step 4: Simplify right side
    99,624.50x = 7,465,554,492.79
  5. Step 5: Solve for x
    x = 7,465,554,492.79/99,624.50
  6. Step 6: Final answer
    x = 74,936.94

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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.