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Finding the Fourth Proportional to 313,096.76, 432,073.70 and 169,856.79

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Solution

The fourth proportional to 313,096.76, 432,073.70 and 169,856.79 is: 234,402.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,096.76 : 432,073.70 = 169,856.79 : x
  2. Step 2: Convert to fraction form
    313,096.76/432,073.70 = 169,856.79/x
  3. Step 3: Cross multiply
    313,096.76x = 432,073.70 × 169,856.79
  4. Step 4: Simplify right side
    313,096.76x = 73,390,649,892.83
  5. Step 5: Solve for x
    x = 73,390,649,892.83/313,096.76
  6. Step 6: Final answer
    x = 234,402.46

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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.