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Finding the Fourth Proportional to 118,003.86, 162,839.66 and 67,009.86

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Solution

The fourth proportional to 118,003.86, 162,839.66 and 67,009.86 is: 92,470.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,003.86 : 162,839.66 = 67,009.86 : x
  2. Step 2: Convert to fraction form
    118,003.86/162,839.66 = 67,009.86/x
  3. Step 3: Cross multiply
    118,003.86x = 162,839.66 × 67,009.86
  4. Step 4: Simplify right side
    118,003.86x = 10,911,862,484.00
  5. Step 5: Solve for x
    x = 10,911,862,484.00/118,003.86
  6. Step 6: Final answer
    x = 92,470.39

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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.