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Finding the Fourth Proportional to 98,145.60, 147,218.40 and 48,233.40

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Solution

The fourth proportional to 98,145.60, 147,218.40 and 48,233.40 is: 72,350.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,145.60 : 147,218.40 = 48,233.40 : x
  2. Step 2: Convert to fraction form
    98,145.60/147,218.40 = 48,233.40/x
  3. Step 3: Cross multiply
    98,145.60x = 147,218.40 × 48,233.40
  4. Step 4: Simplify right side
    98,145.60x = 7,100,843,974.56
  5. Step 5: Solve for x
    x = 7,100,843,974.56/98,145.60
  6. Step 6: Final answer
    x = 72,350.10

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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.