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Finding the Fourth Proportional to 118,068.30, 177,145.65 and 47,954.70

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Solution

The fourth proportional to 118,068.30, 177,145.65 and 47,954.70 is: 71,949.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,068.30 : 177,145.65 = 47,954.70 : x
  2. Step 2: Convert to fraction form
    118,068.30/177,145.65 = 47,954.70/x
  3. Step 3: Cross multiply
    118,068.30x = 177,145.65 × 47,954.70
  4. Step 4: Simplify right side
    118,068.30x = 8,494,966,502.06
  5. Step 5: Solve for x
    x = 8,494,966,502.06/118,068.30
  6. Step 6: Final answer
    x = 71,949.60

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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.