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Finding the Fourth Proportional to 75,158.67, 103,669.13 and 48,335.12

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Solution

The fourth proportional to 75,158.67, 103,669.13 and 48,335.12 is: 66,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,158.67 : 103,669.13 = 48,335.12 : x
  2. Step 2: Convert to fraction form
    75,158.67/103,669.13 = 48,335.12/x
  3. Step 3: Cross multiply
    75,158.67x = 103,669.13 × 48,335.12
  4. Step 4: Simplify right side
    75,158.67x = 5,010,859,838.85
  5. Step 5: Solve for x
    x = 5,010,859,838.85/75,158.67
  6. Step 6: Final answer
    x = 66,670.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.