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Finding the Fourth Proportional to 113,595.90, 156,767.67 and 65,864.22

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Solution

The fourth proportional to 113,595.90, 156,767.67 and 65,864.22 is: 90,895.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,595.90 : 156,767.67 = 65,864.22 : x
  2. Step 2: Convert to fraction form
    113,595.90/156,767.67 = 65,864.22/x
  3. Step 3: Cross multiply
    113,595.90x = 156,767.67 × 65,864.22
  4. Step 4: Simplify right side
    113,595.90x = 10,325,380,305.77
  5. Step 5: Solve for x
    x = 10,325,380,305.77/113,595.90
  6. Step 6: Final answer
    x = 90,895.71

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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.