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Finding the Fourth Proportional to 268,370.70, 402,206.13 and 110,420.70

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Solution

The fourth proportional to 268,370.70, 402,206.13 and 110,420.70 is: 165,487.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,370.70 : 402,206.13 = 110,420.70 : x
  2. Step 2: Convert to fraction form
    268,370.70/402,206.13 = 110,420.70/x
  3. Step 3: Cross multiply
    268,370.70x = 402,206.13 × 110,420.70
  4. Step 4: Simplify right side
    268,370.70x = 44,411,882,418.89
  5. Step 5: Solve for x
    x = 44,411,882,418.89/268,370.70
  6. Step 6: Final answer
    x = 165,487.08

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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.