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Finding the Fourth Proportional to 74,793.48, 103,351.86 and 71,148.84

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Solution

The fourth proportional to 74,793.48, 103,351.86 and 71,148.84 is: 98,315.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,793.48 : 103,351.86 = 71,148.84 : x
  2. Step 2: Convert to fraction form
    74,793.48/103,351.86 = 71,148.84/x
  3. Step 3: Cross multiply
    74,793.48x = 103,351.86 × 71,148.84
  4. Step 4: Simplify right side
    74,793.48x = 7,353,364,950.84
  5. Step 5: Solve for x
    x = 7,353,364,950.84/74,793.48
  6. Step 6: Final answer
    x = 98,315.59

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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.