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Finding the Fourth Proportional to 132,907.88, 183,443.66 and 87,593.92

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Solution

The fourth proportional to 132,907.88, 183,443.66 and 87,593.92 is: 120,899.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,907.88 : 183,443.66 = 87,593.92 : x
  2. Step 2: Convert to fraction form
    132,907.88/183,443.66 = 87,593.92/x
  3. Step 3: Cross multiply
    132,907.88x = 183,443.66 × 87,593.92
  4. Step 4: Simplify right side
    132,907.88x = 16,068,547,923.36
  5. Step 5: Solve for x
    x = 16,068,547,923.36/132,907.88
  6. Step 6: Final answer
    x = 120,899.89

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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.