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Finding the Fourth Proportional to 71,948.88, 107,998.17 and 52,994.91

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Solution

The fourth proportional to 71,948.88, 107,998.17 and 52,994.91 is: 79,547.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,948.88 : 107,998.17 = 52,994.91 : x
  2. Step 2: Convert to fraction form
    71,948.88/107,998.17 = 52,994.91/x
  3. Step 3: Cross multiply
    71,948.88x = 107,998.17 × 52,994.91
  4. Step 4: Simplify right side
    71,948.88x = 5,723,353,299.31
  5. Step 5: Solve for x
    x = 5,723,353,299.31/71,948.88
  6. Step 6: Final answer
    x = 79,547.50

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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.