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Finding the Fourth Proportional to 162,398.80, 243,598.20 and 112,535.20

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Solution

The fourth proportional to 162,398.80, 243,598.20 and 112,535.20 is: 168,802.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,398.80 : 243,598.20 = 112,535.20 : x
  2. Step 2: Convert to fraction form
    162,398.80/243,598.20 = 112,535.20/x
  3. Step 3: Cross multiply
    162,398.80x = 243,598.20 × 112,535.20
  4. Step 4: Simplify right side
    162,398.80x = 27,413,372,156.64
  5. Step 5: Solve for x
    x = 27,413,372,156.64/162,398.80
  6. Step 6: Final answer
    x = 168,802.80

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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.