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Finding the Fourth Proportional to 176,234.95, 243,330.65 and 108,343

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Solution

The fourth proportional to 176,234.95, 243,330.65 and 108,343 is: 149,591.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,234.95 : 243,330.65 = 108,343 : x
  2. Step 2: Convert to fraction form
    176,234.95/243,330.65 = 108,343/x
  3. Step 3: Cross multiply
    176,234.95x = 243,330.65 × 108,343
  4. Step 4: Simplify right side
    176,234.95x = 26,363,172,612.95
  5. Step 5: Solve for x
    x = 26,363,172,612.95/176,234.95
  6. Step 6: Final answer
    x = 149,591.06

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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.