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Finding the Fourth Proportional to 318,098.44, 438,981.30 and 174,864.52

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Solution

The fourth proportional to 318,098.44, 438,981.30 and 174,864.52 is: 241,316.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,098.44 : 438,981.30 = 174,864.52 : x
  2. Step 2: Convert to fraction form
    318,098.44/438,981.30 = 174,864.52/x
  3. Step 3: Cross multiply
    318,098.44x = 438,981.30 × 174,864.52
  4. Step 4: Simplify right side
    318,098.44x = 76,762,254,313.48
  5. Step 5: Solve for x
    x = 76,762,254,313.48/318,098.44
  6. Step 6: Final answer
    x = 241,316.04

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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.