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Finding the Fourth Proportional to 75,133.67, 103,689.46 and 43,304.62

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Solution

The fourth proportional to 75,133.67, 103,689.46 and 43,304.62 is: 59,763.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,133.67 : 103,689.46 = 43,304.62 : x
  2. Step 2: Convert to fraction form
    75,133.67/103,689.46 = 43,304.62/x
  3. Step 3: Cross multiply
    75,133.67x = 103,689.46 × 43,304.62
  4. Step 4: Simplify right side
    75,133.67x = 4,490,232,663.31
  5. Step 5: Solve for x
    x = 4,490,232,663.31/75,133.67
  6. Step 6: Final answer
    x = 59,763.25

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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.