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Finding the Fourth Proportional to 178,734.69, 268,101.87 and 45,614.93

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Solution

The fourth proportional to 178,734.69, 268,101.87 and 45,614.93 is: 68,422.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,734.69 : 268,101.87 = 45,614.93 : x
  2. Step 2: Convert to fraction form
    178,734.69/268,101.87 = 45,614.93/x
  3. Step 3: Cross multiply
    178,734.69x = 268,101.87 × 45,614.93
  4. Step 4: Simplify right side
    178,734.69x = 12,229,448,032.92
  5. Step 5: Solve for x
    x = 12,229,448,032.92/178,734.69
  6. Step 6: Final answer
    x = 68,422.35

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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.