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Finding the Fourth Proportional to 98,624.80, 147,937.20 and 56,634.40

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Solution

The fourth proportional to 98,624.80, 147,937.20 and 56,634.40 is: 84,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,624.80 : 147,937.20 = 56,634.40 : x
  2. Step 2: Convert to fraction form
    98,624.80/147,937.20 = 56,634.40/x
  3. Step 3: Cross multiply
    98,624.80x = 147,937.20 × 56,634.40
  4. Step 4: Simplify right side
    98,624.80x = 8,378,334,559.68
  5. Step 5: Solve for x
    x = 8,378,334,559.68/98,624.80
  6. Step 6: Final answer
    x = 84,951.60

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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.