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Finding the Fourth Proportional to 240,160.71, 360,234.85 and 78,053.86

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Solution

The fourth proportional to 240,160.71, 360,234.85 and 78,053.86 is: 117,078.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,160.71 : 360,234.85 = 78,053.86 : x
  2. Step 2: Convert to fraction form
    240,160.71/360,234.85 = 78,053.86/x
  3. Step 3: Cross multiply
    240,160.71x = 360,234.85 × 78,053.86
  4. Step 4: Simplify right side
    240,160.71x = 28,117,720,549.02
  5. Step 5: Solve for x
    x = 28,117,720,549.02/240,160.71
  6. Step 6: Final answer
    x = 117,078.77

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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.