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Finding the Fourth Proportional to 298,391.91, 447,658.92 and 88,030.05

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Solution

The fourth proportional to 298,391.91, 447,658.92 and 88,030.05 is: 132,066.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,391.91 : 447,658.92 = 88,030.05 : x
  2. Step 2: Convert to fraction form
    298,391.91/447,658.92 = 88,030.05/x
  3. Step 3: Cross multiply
    298,391.91x = 447,658.92 × 88,030.05
  4. Step 4: Simplify right side
    298,391.91x = 39,407,437,110.55
  5. Step 5: Solve for x
    x = 39,407,437,110.55/298,391.91
  6. Step 6: Final answer
    x = 132,066.04

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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.