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Finding the Fourth Proportional to 232,309.32, 320,699.48 and 155,800.42

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Solution

The fourth proportional to 232,309.32, 320,699.48 and 155,800.42 is: 215,080.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,309.32 : 320,699.48 = 155,800.42 : x
  2. Step 2: Convert to fraction form
    232,309.32/320,699.48 = 155,800.42/x
  3. Step 3: Cross multiply
    232,309.32x = 320,699.48 × 155,800.42
  4. Step 4: Simplify right side
    232,309.32x = 49,965,113,677.78
  5. Step 5: Solve for x
    x = 49,965,113,677.78/232,309.32
  6. Step 6: Final answer
    x = 215,080.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.