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Finding the Fourth Proportional to 118,534.57, 163,569.30 and 67,545.67

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Solution

The fourth proportional to 118,534.57, 163,569.30 and 67,545.67 is: 93,208.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,534.57 : 163,569.30 = 67,545.67 : x
  2. Step 2: Convert to fraction form
    118,534.57/163,569.30 = 67,545.67/x
  3. Step 3: Cross multiply
    118,534.57x = 163,569.30 × 67,545.67
  4. Step 4: Simplify right side
    118,534.57x = 11,048,397,959.93
  5. Step 5: Solve for x
    x = 11,048,397,959.93/118,534.57
  6. Step 6: Final answer
    x = 93,208.23

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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.