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Finding the Fourth Proportional to 118,800.24, 163,947 and 67,812

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Solution

The fourth proportional to 118,800.24, 163,947 and 67,812 is: 93,582.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,800.24 : 163,947 = 67,812 : x
  2. Step 2: Convert to fraction form
    118,800.24/163,947 = 67,812/x
  3. Step 3: Cross multiply
    118,800.24x = 163,947 × 67,812
  4. Step 4: Simplify right side
    118,800.24x = 11,117,573,964
  5. Step 5: Solve for x
    x = 11,117,573,964/118,800.24
  6. Step 6: Final answer
    x = 93,582.08

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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.