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Finding the Fourth Proportional to 117,162.72, 175,770 and 64,545.12

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Solution

The fourth proportional to 117,162.72, 175,770 and 64,545.12 is: 96,831.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,162.72 : 175,770 = 64,545.12 : x
  2. Step 2: Convert to fraction form
    117,162.72/175,770 = 64,545.12/x
  3. Step 3: Cross multiply
    117,162.72x = 175,770 × 64,545.12
  4. Step 4: Simplify right side
    117,162.72x = 11,345,095,742.40
  5. Step 5: Solve for x
    x = 11,345,095,742.40/117,162.72
  6. Step 6: Final answer
    x = 96,831.96

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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.