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Finding the Fourth Proportional to 118,113.85, 162,997.85 and 64,399.77

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Solution

The fourth proportional to 118,113.85, 162,997.85 and 64,399.77 is: 88,872.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,113.85 : 162,997.85 = 64,399.77 : x
  2. Step 2: Convert to fraction form
    118,113.85/162,997.85 = 64,399.77/x
  3. Step 3: Cross multiply
    118,113.85x = 162,997.85 × 64,399.77
  4. Step 4: Simplify right side
    118,113.85x = 10,497,024,050.49
  5. Step 5: Solve for x
    x = 10,497,024,050.49/118,113.85
  6. Step 6: Final answer
    x = 88,872.08

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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.