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Finding the Fourth Proportional to 175,722.72, 242,514.72 and 100,282.56

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Solution

The fourth proportional to 175,722.72, 242,514.72 and 100,282.56 is: 138,399.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,722.72 : 242,514.72 = 100,282.56 : x
  2. Step 2: Convert to fraction form
    175,722.72/242,514.72 = 100,282.56/x
  3. Step 3: Cross multiply
    175,722.72x = 242,514.72 × 100,282.56
  4. Step 4: Simplify right side
    175,722.72x = 24,319,996,959.28
  5. Step 5: Solve for x
    x = 24,319,996,959.28/175,722.72
  6. Step 6: Final answer
    x = 138,399.84

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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.