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Finding the Fourth Proportional to 127,244.60, 190,866.90 and 117,621.80

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Solution

The fourth proportional to 127,244.60, 190,866.90 and 117,621.80 is: 176,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,244.60 : 190,866.90 = 117,621.80 : x
  2. Step 2: Convert to fraction form
    127,244.60/190,866.90 = 117,621.80/x
  3. Step 3: Cross multiply
    127,244.60x = 190,866.90 × 117,621.80
  4. Step 4: Simplify right side
    127,244.60x = 22,450,108,338.42
  5. Step 5: Solve for x
    x = 22,450,108,338.42/127,244.60
  6. Step 6: Final answer
    x = 176,432.70

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1.5x scale

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.