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Finding the Fourth Proportional to 175,967.76, 242,778.42 and 99,479.46

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Solution

The fourth proportional to 175,967.76, 242,778.42 and 99,479.46 is: 137,249.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,967.76 : 242,778.42 = 99,479.46 : x
  2. Step 2: Convert to fraction form
    175,967.76/242,778.42 = 99,479.46/x
  3. Step 3: Cross multiply
    175,967.76x = 242,778.42 × 99,479.46
  4. Step 4: Simplify right side
    175,967.76x = 24,151,466,121.25
  5. Step 5: Solve for x
    x = 24,151,466,121.25/175,967.76
  6. Step 6: Final answer
    x = 137,249.38

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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.