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Finding the Fourth Proportional to 99,044.88, 148,606.20 and 43,602

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Solution

The fourth proportional to 99,044.88, 148,606.20 and 43,602 is: 65,420.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,044.88 : 148,606.20 = 43,602 : x
  2. Step 2: Convert to fraction form
    99,044.88/148,606.20 = 43,602/x
  3. Step 3: Cross multiply
    99,044.88x = 148,606.20 × 43,602
  4. Step 4: Simplify right side
    99,044.88x = 6,479,527,532.40
  5. Step 5: Solve for x
    x = 6,479,527,532.40/99,044.88
  6. Step 6: Final answer
    x = 65,420.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.