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Finding the Fourth Proportional to 98,552.60, 147,878.42 and 45,966.20

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Solution

The fourth proportional to 98,552.60, 147,878.42 and 45,966.20 is: 68,972.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,552.60 : 147,878.42 = 45,966.20 : x
  2. Step 2: Convert to fraction form
    98,552.60/147,878.42 = 45,966.20/x
  3. Step 3: Cross multiply
    98,552.60x = 147,878.42 × 45,966.20
  4. Step 4: Simplify right side
    98,552.60x = 6,797,409,029.40
  5. Step 5: Solve for x
    x = 6,797,409,029.40/98,552.60
  6. Step 6: Final answer
    x = 68,972.40

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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.