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Finding the Fourth Proportional to 76,575.38, 105,658.53 and 44,738.12

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Solution

The fourth proportional to 76,575.38, 105,658.53 and 44,738.12 is: 61,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,575.38 : 105,658.53 = 44,738.12 : x
  2. Step 2: Convert to fraction form
    76,575.38/105,658.53 = 44,738.12/x
  3. Step 3: Cross multiply
    76,575.38x = 105,658.53 × 44,738.12
  4. Step 4: Simplify right side
    76,575.38x = 4,726,963,465.87
  5. Step 5: Solve for x
    x = 4,726,963,465.87/76,575.38
  6. Step 6: Final answer
    x = 61,729.55

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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.