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Finding the Fourth Proportional to 118,470.60, 177,643.50 and 43,571.40

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Solution

The fourth proportional to 118,470.60, 177,643.50 and 43,571.40 is: 65,334.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,470.60 : 177,643.50 = 43,571.40 : x
  2. Step 2: Convert to fraction form
    118,470.60/177,643.50 = 43,571.40/x
  3. Step 3: Cross multiply
    118,470.60x = 177,643.50 × 43,571.40
  4. Step 4: Simplify right side
    118,470.60x = 7,740,175,995.90
  5. Step 5: Solve for x
    x = 7,740,175,995.90/118,470.60
  6. Step 6: Final answer
    x = 65,334.15

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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.