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Finding the Fourth Proportional to 252,709.76, 348,593.28 and 163,285.76

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Solution

The fourth proportional to 252,709.76, 348,593.28 and 163,285.76 is: 225,239.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,709.76 : 348,593.28 = 163,285.76 : x
  2. Step 2: Convert to fraction form
    252,709.76/348,593.28 = 163,285.76/x
  3. Step 3: Cross multiply
    252,709.76x = 348,593.28 × 163,285.76
  4. Step 4: Simplify right side
    252,709.76x = 56,920,318,655.69
  5. Step 5: Solve for x
    x = 56,920,318,655.69/252,709.76
  6. Step 6: Final answer
    x = 225,239.89

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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.