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Finding the Fourth Proportional to 181,412.57, 250,352.35 and 99,744.28

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Solution

The fourth proportional to 181,412.57, 250,352.35 and 99,744.28 is: 137,648.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,412.57 : 250,352.35 = 99,744.28 : x
  2. Step 2: Convert to fraction form
    181,412.57/250,352.35 = 99,744.28/x
  3. Step 3: Cross multiply
    181,412.57x = 250,352.35 × 99,744.28
  4. Step 4: Simplify right side
    181,412.57x = 24,971,214,021.82
  5. Step 5: Solve for x
    x = 24,971,214,021.82/181,412.57
  6. Step 6: Final answer
    x = 137,648.75

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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.