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Finding the Fourth Proportional to 76,167.92, 105,101.88 and 42,633.92

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Solution

The fourth proportional to 76,167.92, 105,101.88 and 42,633.92 is: 58,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,167.92 : 105,101.88 = 42,633.92 : x
  2. Step 2: Convert to fraction form
    76,167.92/105,101.88 = 42,633.92/x
  3. Step 3: Cross multiply
    76,167.92x = 105,101.88 × 42,633.92
  4. Step 4: Simplify right side
    76,167.92x = 4,480,905,143.77
  5. Step 5: Solve for x
    x = 4,480,905,143.77/76,167.92
  6. Step 6: Final answer
    x = 58,829.30

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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.