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Finding the Fourth Proportional to 98,209.60, 147,314.40 and 84,846.40

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Solution

The fourth proportional to 98,209.60, 147,314.40 and 84,846.40 is: 127,269.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,209.60 : 147,314.40 = 84,846.40 : x
  2. Step 2: Convert to fraction form
    98,209.60/147,314.40 = 84,846.40/x
  3. Step 3: Cross multiply
    98,209.60x = 147,314.40 × 84,846.40
  4. Step 4: Simplify right side
    98,209.60x = 12,499,096,508.16
  5. Step 5: Solve for x
    x = 12,499,096,508.16/98,209.60
  6. Step 6: Final answer
    x = 127,269.60

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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.