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Finding the Fourth Proportional to 127,403.60, 191,047.80 and 57,246.80

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Solution

The fourth proportional to 127,403.60, 191,047.80 and 57,246.80 is: 85,844.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,403.60 : 191,047.80 = 57,246.80 : x
  2. Step 2: Convert to fraction form
    127,403.60/191,047.80 = 57,246.80/x
  3. Step 3: Cross multiply
    127,403.60x = 191,047.80 × 57,246.80
  4. Step 4: Simplify right side
    127,403.60x = 10,936,875,197.04
  5. Step 5: Solve for x
    x = 10,936,875,197.04/127,403.60
  6. Step 6: Final answer
    x = 85,844.32

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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.