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Finding the Fourth Proportional to 176,115.78, 243,035.46 and 100,659.42

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Solution

The fourth proportional to 176,115.78, 243,035.46 and 100,659.42 is: 138,907.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,115.78 : 243,035.46 = 100,659.42 : x
  2. Step 2: Convert to fraction form
    176,115.78/243,035.46 = 100,659.42/x
  3. Step 3: Cross multiply
    176,115.78x = 243,035.46 × 100,659.42
  4. Step 4: Simplify right side
    176,115.78x = 24,463,808,443.03
  5. Step 5: Solve for x
    x = 24,463,808,443.03/176,115.78
  6. Step 6: Final answer
    x = 138,907.53

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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.