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Finding the Fourth Proportional to 169,875.78, 254,812.65 and 43,515.78

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Solution

The fourth proportional to 169,875.78, 254,812.65 and 43,515.78 is: 65,273.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,875.78 : 254,812.65 = 43,515.78 : x
  2. Step 2: Convert to fraction form
    169,875.78/254,812.65 = 43,515.78/x
  3. Step 3: Cross multiply
    169,875.78x = 254,812.65 × 43,515.78
  4. Step 4: Simplify right side
    169,875.78x = 11,088,371,218.62
  5. Step 5: Solve for x
    x = 11,088,371,218.62/169,875.78
  6. Step 6: Final answer
    x = 65,273.41

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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.