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Finding the Fourth Proportional to 162,803.70, 244,205.55 and 74,230.20

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Solution

The fourth proportional to 162,803.70, 244,205.55 and 74,230.20 is: 111,345.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,803.70 : 244,205.55 = 74,230.20 : x
  2. Step 2: Convert to fraction form
    162,803.70/244,205.55 = 74,230.20/x
  3. Step 3: Cross multiply
    162,803.70x = 244,205.55 × 74,230.20
  4. Step 4: Simplify right side
    162,803.70x = 18,127,426,817.61
  5. Step 5: Solve for x
    x = 18,127,426,817.61/162,803.70
  6. Step 6: Final answer
    x = 111,345.30

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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.