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Finding the Fourth Proportional to 124,967.60, 187,451.40 and 115,344.80

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Solution

The fourth proportional to 124,967.60, 187,451.40 and 115,344.80 is: 173,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,967.60 : 187,451.40 = 115,344.80 : x
  2. Step 2: Convert to fraction form
    124,967.60/187,451.40 = 115,344.80/x
  3. Step 3: Cross multiply
    124,967.60x = 187,451.40 × 115,344.80
  4. Step 4: Simplify right side
    124,967.60x = 21,621,544,242.72
  5. Step 5: Solve for x
    x = 21,621,544,242.72/124,967.60
  6. Step 6: Final answer
    x = 173,017.20

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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.