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Finding the Fourth Proportional to 87,168.39, 130,752.59 and 60,924.39

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Solution

The fourth proportional to 87,168.39, 130,752.59 and 60,924.39 is: 91,386.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,168.39 : 130,752.59 = 60,924.39 : x
  2. Step 2: Convert to fraction form
    87,168.39/130,752.59 = 60,924.39/x
  3. Step 3: Cross multiply
    87,168.39x = 130,752.59 × 60,924.39
  4. Step 4: Simplify right side
    87,168.39x = 7,966,021,786.67
  5. Step 5: Solve for x
    x = 7,966,021,786.67/87,168.39
  6. Step 6: Final answer
    x = 91,386.59

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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.