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Finding the Fourth Proportional to 127,835.40, 191,753.10 and 65,627.40

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Solution

The fourth proportional to 127,835.40, 191,753.10 and 65,627.40 is: 98,441.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,835.40 : 191,753.10 = 65,627.40 : x
  2. Step 2: Convert to fraction form
    127,835.40/191,753.10 = 65,627.40/x
  3. Step 3: Cross multiply
    127,835.40x = 191,753.10 × 65,627.40
  4. Step 4: Simplify right side
    127,835.40x = 12,584,257,394.94
  5. Step 5: Solve for x
    x = 12,584,257,394.94/127,835.40
  6. Step 6: Final answer
    x = 98,441.10

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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.