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Finding the Fourth Proportional to 98,575.20, 147,862.80 and 36,237.60

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Solution

The fourth proportional to 98,575.20, 147,862.80 and 36,237.60 is: 54,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,575.20 : 147,862.80 = 36,237.60 : x
  2. Step 2: Convert to fraction form
    98,575.20/147,862.80 = 36,237.60/x
  3. Step 3: Cross multiply
    98,575.20x = 147,862.80 × 36,237.60
  4. Step 4: Simplify right side
    98,575.20x = 5,358,193,001.28
  5. Step 5: Solve for x
    x = 5,358,193,001.28/98,575.20
  6. Step 6: Final answer
    x = 54,356.40

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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.