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Finding the Fourth Proportional to 268,432.65, 370,401.17 and 166,420.94

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Solution

The fourth proportional to 268,432.65, 370,401.17 and 166,420.94 is: 229,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,432.65 : 370,401.17 = 166,420.94 : x
  2. Step 2: Convert to fraction form
    268,432.65/370,401.17 = 166,420.94/x
  3. Step 3: Cross multiply
    268,432.65x = 370,401.17 × 166,420.94
  4. Step 4: Simplify right side
    268,432.65x = 61,642,508,204.39
  5. Step 5: Solve for x
    x = 61,642,508,204.39/268,432.65
  6. Step 6: Final answer
    x = 229,638.64

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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.