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Finding the Fourth Proportional to 73,211.70, 109,947.15 and 56,612.10

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Solution

The fourth proportional to 73,211.70, 109,947.15 and 56,612.10 is: 85,018.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,211.70 : 109,947.15 = 56,612.10 : x
  2. Step 2: Convert to fraction form
    73,211.70/109,947.15 = 56,612.10/x
  3. Step 3: Cross multiply
    73,211.70x = 109,947.15 × 56,612.10
  4. Step 4: Simplify right side
    73,211.70x = 6,224,339,050.52
  5. Step 5: Solve for x
    x = 6,224,339,050.52/73,211.70
  6. Step 6: Final answer
    x = 85,018.37

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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.