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Finding the Fourth Proportional to 132,648.66, 199,009.38 and 39,154.38

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Solution

The fourth proportional to 132,648.66, 199,009.38 and 39,154.38 is: 58,742.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,648.66 : 199,009.38 = 39,154.38 : x
  2. Step 2: Convert to fraction form
    132,648.66/199,009.38 = 39,154.38/x
  3. Step 3: Cross multiply
    132,648.66x = 199,009.38 × 39,154.38
  4. Step 4: Simplify right side
    132,648.66x = 7,792,088,888.08
  5. Step 5: Solve for x
    x = 7,792,088,888.08/132,648.66
  6. Step 6: Final answer
    x = 58,742.31

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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.