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Finding the Fourth Proportional to 132,655.86, 183,005.94 and 89,621.52

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Solution

The fourth proportional to 132,655.86, 183,005.94 and 89,621.52 is: 123,637.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,655.86 : 183,005.94 = 89,621.52 : x
  2. Step 2: Convert to fraction form
    132,655.86/183,005.94 = 89,621.52/x
  3. Step 3: Cross multiply
    132,655.86x = 183,005.94 × 89,621.52
  4. Step 4: Simplify right side
    132,655.86x = 16,401,270,511.83
  5. Step 5: Solve for x
    x = 16,401,270,511.83/132,655.86
  6. Step 6: Final answer
    x = 123,637.74

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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.