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Finding the Fourth Proportional to 297,434.45, 446,086.05 and 87,088.79

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Solution

The fourth proportional to 297,434.45, 446,086.05 and 87,088.79 is: 130,613.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,434.45 : 446,086.05 = 87,088.79 : x
  2. Step 2: Convert to fraction form
    297,434.45/446,086.05 = 87,088.79/x
  3. Step 3: Cross multiply
    297,434.45x = 446,086.05 × 87,088.79
  4. Step 4: Simplify right side
    297,434.45x = 38,849,092,099.95
  5. Step 5: Solve for x
    x = 38,849,092,099.95/297,434.45
  6. Step 6: Final answer
    x = 130,613.96

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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.