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Finding the Fourth Proportional to 103,744.70, 155,398.35 and 103,744.70

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Solution

The fourth proportional to 103,744.70, 155,398.35 and 103,744.70 is: 155,398.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,744.70 : 155,398.35 = 103,744.70 : x
  2. Step 2: Convert to fraction form
    103,744.70/155,398.35 = 103,744.70/x
  3. Step 3: Cross multiply
    103,744.70x = 155,398.35 × 103,744.70
  4. Step 4: Simplify right side
    103,744.70x = 16,121,755,201.25
  5. Step 5: Solve for x
    x = 16,121,755,201.25/103,744.70
  6. Step 6: Final answer
    x = 155,398.35

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1.5x scale

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.