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Finding the Fourth Proportional to 117,970.38, 176,981.85 and 43,090.41

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Solution

The fourth proportional to 117,970.38, 176,981.85 and 43,090.41 is: 64,645.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,970.38 : 176,981.85 = 43,090.41 : x
  2. Step 2: Convert to fraction form
    117,970.38/176,981.85 = 43,090.41/x
  3. Step 3: Cross multiply
    117,970.38x = 176,981.85 × 43,090.41
  4. Step 4: Simplify right side
    117,970.38x = 7,626,220,479.06
  5. Step 5: Solve for x
    x = 7,626,220,479.06/117,970.38
  6. Step 6: Final answer
    x = 64,645.21

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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.