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Finding the Fourth Proportional to 176,169.60, 243,030.96 and 100,674

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Solution

The fourth proportional to 176,169.60, 243,030.96 and 100,674 is: 138,882.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,169.60 : 243,030.96 = 100,674 : x
  2. Step 2: Convert to fraction form
    176,169.60/243,030.96 = 100,674/x
  3. Step 3: Cross multiply
    176,169.60x = 243,030.96 × 100,674
  4. Step 4: Simplify right side
    176,169.60x = 24,466,898,867.04
  5. Step 5: Solve for x
    x = 24,466,898,867.04/176,169.60
  6. Step 6: Final answer
    x = 138,882.64

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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.