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Finding the Fourth Proportional to 98,857.60, 148,286.40 and 24,985.60

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Solution

The fourth proportional to 98,857.60, 148,286.40 and 24,985.60 is: 37,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,857.60 : 148,286.40 = 24,985.60 : x
  2. Step 2: Convert to fraction form
    98,857.60/148,286.40 = 24,985.60/x
  3. Step 3: Cross multiply
    98,857.60x = 148,286.40 × 24,985.60
  4. Step 4: Simplify right side
    98,857.60x = 3,705,024,675.84
  5. Step 5: Solve for x
    x = 3,705,024,675.84/98,857.60
  6. Step 6: Final answer
    x = 37,478.40

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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.