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Finding the Fourth Proportional to 132,457.60, 198,905.10 and 88,280.20

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Solution

The fourth proportional to 132,457.60, 198,905.10 and 88,280.20 is: 132,566.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,457.60 : 198,905.10 = 88,280.20 : x
  2. Step 2: Convert to fraction form
    132,457.60/198,905.10 = 88,280.20/x
  3. Step 3: Cross multiply
    132,457.60x = 198,905.10 × 88,280.20
  4. Step 4: Simplify right side
    132,457.60x = 17,559,382,009.02
  5. Step 5: Solve for x
    x = 17,559,382,009.02/132,457.60
  6. Step 6: Final answer
    x = 132,566.06

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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.