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Finding the Fourth Proportional to 95,443.55, 143,165.33 and 77,728.85

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Solution

The fourth proportional to 95,443.55, 143,165.33 and 77,728.85 is: 116,593.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,443.55 : 143,165.33 = 77,728.85 : x
  2. Step 2: Convert to fraction form
    95,443.55/143,165.33 = 77,728.85/x
  3. Step 3: Cross multiply
    95,443.55x = 143,165.33 × 77,728.85
  4. Step 4: Simplify right side
    95,443.55x = 11,128,076,072.13
  5. Step 5: Solve for x
    x = 11,128,076,072.13/95,443.55
  6. Step 6: Final answer
    x = 116,593.28

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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.