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Finding the Fourth Proportional to 95,509.62, 143,245.89 and 90,768.08

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Solution

The fourth proportional to 95,509.62, 143,245.89 and 90,768.08 is: 136,134.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,509.62 : 143,245.89 = 90,768.08 : x
  2. Step 2: Convert to fraction form
    95,509.62/143,245.89 = 90,768.08/x
  3. Step 3: Cross multiply
    95,509.62x = 143,245.89 × 90,768.08
  4. Step 4: Simplify right side
    95,509.62x = 13,002,154,403.19
  5. Step 5: Solve for x
    x = 13,002,154,403.19/95,509.62
  6. Step 6: Final answer
    x = 136,134.50

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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.