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Finding the Fourth Proportional to 98,350.47, 135,722.25 and 55,326.69

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Solution

The fourth proportional to 98,350.47, 135,722.25 and 55,326.69 is: 76,350.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,350.47 : 135,722.25 = 55,326.69 : x
  2. Step 2: Convert to fraction form
    98,350.47/135,722.25 = 55,326.69/x
  3. Step 3: Cross multiply
    98,350.47x = 135,722.25 × 55,326.69
  4. Step 4: Simplify right side
    98,350.47x = 7,509,062,851.85
  5. Step 5: Solve for x
    x = 7,509,062,851.85/98,350.47
  6. Step 6: Final answer
    x = 76,350.05

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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.