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Finding the Fourth Proportional to 132,502.40, 198,763.20 and 79,798.40

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Solution

The fourth proportional to 132,502.40, 198,763.20 and 79,798.40 is: 119,703.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,502.40 : 198,763.20 = 79,798.40 : x
  2. Step 2: Convert to fraction form
    132,502.40/198,763.20 = 79,798.40/x
  3. Step 3: Cross multiply
    132,502.40x = 198,763.20 × 79,798.40
  4. Step 4: Simplify right side
    132,502.40x = 15,860,985,338.88
  5. Step 5: Solve for x
    x = 15,860,985,338.88/132,502.40
  6. Step 6: Final answer
    x = 119,703.38

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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.