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Finding the Fourth Proportional to 176,609.19, 243,713.25 and 100,133.43

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Solution

The fourth proportional to 176,609.19, 243,713.25 and 100,133.43 is: 138,179.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,609.19 : 243,713.25 = 100,133.43 : x
  2. Step 2: Convert to fraction form
    176,609.19/243,713.25 = 100,133.43/x
  3. Step 3: Cross multiply
    176,609.19x = 243,713.25 × 100,133.43
  4. Step 4: Simplify right side
    176,609.19x = 24,403,843,658.95
  5. Step 5: Solve for x
    x = 24,403,843,658.95/176,609.19
  6. Step 6: Final answer
    x = 138,179.92

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1.5x scale

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.