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Finding the Fourth Proportional to 89,651.65, 134,492.06 and 26,478.16

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Solution

The fourth proportional to 89,651.65, 134,492.06 and 26,478.16 is: 39,721.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,651.65 : 134,492.06 = 26,478.16 : x
  2. Step 2: Convert to fraction form
    89,651.65/134,492.06 = 26,478.16/x
  3. Step 3: Cross multiply
    89,651.65x = 134,492.06 × 26,478.16
  4. Step 4: Simplify right side
    89,651.65x = 3,561,102,283.41
  5. Step 5: Solve for x
    x = 3,561,102,283.41/89,651.65
  6. Step 6: Final answer
    x = 39,721.55

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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.