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Finding the Fourth Proportional to 108,535.80, 162,803.70 and 49,486.80

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Solution

The fourth proportional to 108,535.80, 162,803.70 and 49,486.80 is: 74,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,535.80 : 162,803.70 = 49,486.80 : x
  2. Step 2: Convert to fraction form
    108,535.80/162,803.70 = 49,486.80/x
  3. Step 3: Cross multiply
    108,535.80x = 162,803.70 × 49,486.80
  4. Step 4: Simplify right side
    108,535.80x = 8,056,634,141.16
  5. Step 5: Solve for x
    x = 8,056,634,141.16/108,535.80
  6. Step 6: Final answer
    x = 74,230.20

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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.