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Finding the Fourth Proportional to 135,312.80, 202,969.20 and 41,818.40

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Solution

The fourth proportional to 135,312.80, 202,969.20 and 41,818.40 is: 62,727.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,312.80 : 202,969.20 = 41,818.40 : x
  2. Step 2: Convert to fraction form
    135,312.80/202,969.20 = 41,818.40/x
  3. Step 3: Cross multiply
    135,312.80x = 202,969.20 × 41,818.40
  4. Step 4: Simplify right side
    135,312.80x = 8,487,847,193.28
  5. Step 5: Solve for x
    x = 8,487,847,193.28/135,312.80
  6. Step 6: Final answer
    x = 62,727.60

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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.