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Finding the Fourth Proportional to 178,989.59, 247,006.55 and 98,422.33

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Solution

The fourth proportional to 178,989.59, 247,006.55 and 98,422.33 is: 135,823.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,989.59 : 247,006.55 = 98,422.33 : x
  2. Step 2: Convert to fraction form
    178,989.59/247,006.55 = 98,422.33/x
  3. Step 3: Cross multiply
    178,989.59x = 247,006.55 × 98,422.33
  4. Step 4: Simplify right side
    178,989.59x = 24,310,960,176.26
  5. Step 5: Solve for x
    x = 24,310,960,176.26/178,989.59
  6. Step 6: Final answer
    x = 135,823.32

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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.