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Finding the Fourth Proportional to 98,574.80, 147,919.80 and 36,251.60

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Solution

The fourth proportional to 98,574.80, 147,919.80 and 36,251.60 is: 54,398.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,574.80 : 147,919.80 = 36,251.60 : x
  2. Step 2: Convert to fraction form
    98,574.80/147,919.80 = 36,251.60/x
  3. Step 3: Cross multiply
    98,574.80x = 147,919.80 × 36,251.60
  4. Step 4: Simplify right side
    98,574.80x = 5,362,329,421.68
  5. Step 5: Solve for x
    x = 5,362,329,421.68/98,574.80
  6. Step 6: Final answer
    x = 54,398.58

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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.