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Finding the Fourth Proportional to 374,665.12, 562,034.56 and 137,952.48

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Solution

The fourth proportional to 374,665.12, 562,034.56 and 137,952.48 is: 206,942.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,665.12 : 562,034.56 = 137,952.48 : x
  2. Step 2: Convert to fraction form
    374,665.12/562,034.56 = 137,952.48/x
  3. Step 3: Cross multiply
    374,665.12x = 562,034.56 × 137,952.48
  4. Step 4: Simplify right side
    374,665.12x = 77,534,061,397.71
  5. Step 5: Solve for x
    x = 77,534,061,397.71/374,665.12
  6. Step 6: Final answer
    x = 206,942.30

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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.