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Finding the Fourth Proportional to 132,876.64, 199,315.68 and 39,383.20

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Solution

The fourth proportional to 132,876.64, 199,315.68 and 39,383.20 is: 59,075.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,876.64 : 199,315.68 = 39,383.20 : x
  2. Step 2: Convert to fraction form
    132,876.64/199,315.68 = 39,383.20/x
  3. Step 3: Cross multiply
    132,876.64x = 199,315.68 × 39,383.20
  4. Step 4: Simplify right side
    132,876.64x = 7,849,689,288.58
  5. Step 5: Solve for x
    x = 7,849,689,288.58/132,876.64
  6. Step 6: Final answer
    x = 59,075.01

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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.