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Finding the Fourth Proportional to 508,744.50, 763,131.33 and 134,767.50

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Solution

The fourth proportional to 508,744.50, 763,131.33 and 134,767.50 is: 202,155.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,744.50 : 763,131.33 = 134,767.50 : x
  2. Step 2: Convert to fraction form
    508,744.50/763,131.33 = 134,767.50/x
  3. Step 3: Cross multiply
    508,744.50x = 763,131.33 × 134,767.50
  4. Step 4: Simplify right side
    508,744.50x = 102,845,301,515.78
  5. Step 5: Solve for x
    x = 102,845,301,515.78/508,744.50
  6. Step 6: Final answer
    x = 202,155.11

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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.