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Finding the Fourth Proportional to 178,161.60, 266,935.20 and 84,465.60

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Solution

The fourth proportional to 178,161.60, 266,935.20 and 84,465.60 is: 126,552.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,161.60 : 266,935.20 = 84,465.60 : x
  2. Step 2: Convert to fraction form
    178,161.60/266,935.20 = 84,465.60/x
  3. Step 3: Cross multiply
    178,161.60x = 266,935.20 × 84,465.60
  4. Step 4: Simplify right side
    178,161.60x = 22,546,841,829.12
  5. Step 5: Solve for x
    x = 22,546,841,829.12/178,161.60
  6. Step 6: Final answer
    x = 126,552.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.