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Finding the Fourth Proportional to 236,316.72, 353,642.40 and 147,612

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Solution

The fourth proportional to 236,316.72, 353,642.40 and 147,612 is: 220,897.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,316.72 : 353,642.40 = 147,612 : x
  2. Step 2: Convert to fraction form
    236,316.72/353,642.40 = 147,612/x
  3. Step 3: Cross multiply
    236,316.72x = 353,642.40 × 147,612
  4. Step 4: Simplify right side
    236,316.72x = 52,201,861,948.80
  5. Step 5: Solve for x
    x = 52,201,861,948.80/236,316.72
  6. Step 6: Final answer
    x = 220,897.88

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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.