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Finding the Fourth Proportional to 92,570.90, 138,856.35 and 33,415.70

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Solution

The fourth proportional to 92,570.90, 138,856.35 and 33,415.70 is: 50,123.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,570.90 : 138,856.35 = 33,415.70 : x
  2. Step 2: Convert to fraction form
    92,570.90/138,856.35 = 33,415.70/x
  3. Step 3: Cross multiply
    92,570.90x = 138,856.35 × 33,415.70
  4. Step 4: Simplify right side
    92,570.90x = 4,639,982,134.70
  5. Step 5: Solve for x
    x = 4,639,982,134.70/92,570.90
  6. Step 6: Final answer
    x = 50,123.55

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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.