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Finding the Fourth Proportional to 117,545.84, 162,213.60 and 63,831.77

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Solution

The fourth proportional to 117,545.84, 162,213.60 and 63,831.77 is: 88,088.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,545.84 : 162,213.60 = 63,831.77 : x
  2. Step 2: Convert to fraction form
    117,545.84/162,213.60 = 63,831.77/x
  3. Step 3: Cross multiply
    117,545.84x = 162,213.60 × 63,831.77
  4. Step 4: Simplify right side
    117,545.84x = 10,354,381,206.07
  5. Step 5: Solve for x
    x = 10,354,381,206.07/117,545.84
  6. Step 6: Final answer
    x = 88,088.03

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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.