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Finding the Fourth Proportional to 230,459.60, 345,689.40 and 195,030.20

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Solution

The fourth proportional to 230,459.60, 345,689.40 and 195,030.20 is: 292,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,459.60 : 345,689.40 = 195,030.20 : x
  2. Step 2: Convert to fraction form
    230,459.60/345,689.40 = 195,030.20/x
  3. Step 3: Cross multiply
    230,459.60x = 345,689.40 × 195,030.20
  4. Step 4: Simplify right side
    230,459.60x = 67,419,872,819.88
  5. Step 5: Solve for x
    x = 67,419,872,819.88/230,459.60
  6. Step 6: Final answer
    x = 292,545.30

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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.