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Finding the Fourth Proportional to 194,686.80, 292,030.20 and 132,478.80

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Solution

The fourth proportional to 194,686.80, 292,030.20 and 132,478.80 is: 198,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,686.80 : 292,030.20 = 132,478.80 : x
  2. Step 2: Convert to fraction form
    194,686.80/292,030.20 = 132,478.80/x
  3. Step 3: Cross multiply
    194,686.80x = 292,030.20 × 132,478.80
  4. Step 4: Simplify right side
    194,686.80x = 38,687,810,459.76
  5. Step 5: Solve for x
    x = 38,687,810,459.76/194,686.80
  6. Step 6: Final answer
    x = 198,718.20

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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.