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Finding the Fourth Proportional to 89,897.15, 134,750.49 and 39,251.71

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Solution

The fourth proportional to 89,897.15, 134,750.49 and 39,251.71 is: 58,835.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,897.15 : 134,750.49 = 39,251.71 : x
  2. Step 2: Convert to fraction form
    89,897.15/134,750.49 = 39,251.71/x
  3. Step 3: Cross multiply
    89,897.15x = 134,750.49 × 39,251.71
  4. Step 4: Simplify right side
    89,897.15x = 5,289,186,482.09
  5. Step 5: Solve for x
    x = 5,289,186,482.09/89,897.15
  6. Step 6: Final answer
    x = 58,835.98

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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.