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Finding the Fourth Proportional to 115,649.29, 173,355.76 and 65,623.71

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Solution

The fourth proportional to 115,649.29, 173,355.76 and 65,623.71 is: 98,368.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,649.29 : 173,355.76 = 65,623.71 : x
  2. Step 2: Convert to fraction form
    115,649.29/173,355.76 = 65,623.71/x
  3. Step 3: Cross multiply
    115,649.29x = 173,355.76 × 65,623.71
  4. Step 4: Simplify right side
    115,649.29x = 11,376,248,121.07
  5. Step 5: Solve for x
    x = 11,376,248,121.07/115,649.29
  6. Step 6: Final answer
    x = 98,368.51

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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.