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Finding the Fourth Proportional to 98,655.60, 147,983.40 and 36,350.40

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Solution

The fourth proportional to 98,655.60, 147,983.40 and 36,350.40 is: 54,525.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,655.60 : 147,983.40 = 36,350.40 : x
  2. Step 2: Convert to fraction form
    98,655.60/147,983.40 = 36,350.40/x
  3. Step 3: Cross multiply
    98,655.60x = 147,983.40 × 36,350.40
  4. Step 4: Simplify right side
    98,655.60x = 5,379,255,783.36
  5. Step 5: Solve for x
    x = 5,379,255,783.36/98,655.60
  6. Step 6: Final answer
    x = 54,525.60

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Similar ratio
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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.