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Finding the Fourth Proportional to 94,398.78, 130,265.51 and 51,949.11

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Solution

The fourth proportional to 94,398.78, 130,265.51 and 51,949.11 is: 71,687.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,398.78 : 130,265.51 = 51,949.11 : x
  2. Step 2: Convert to fraction form
    94,398.78/130,265.51 = 51,949.11/x
  3. Step 3: Cross multiply
    94,398.78x = 130,265.51 × 51,949.11
  4. Step 4: Simplify right side
    94,398.78x = 6,767,177,048.45
  5. Step 5: Solve for x
    x = 6,767,177,048.45/94,398.78
  6. Step 6: Final answer
    x = 71,687.12

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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.