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Finding the Fourth Proportional to 127,850.40, 191,775.60 and 96,746.40

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Solution

The fourth proportional to 127,850.40, 191,775.60 and 96,746.40 is: 145,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,850.40 : 191,775.60 = 96,746.40 : x
  2. Step 2: Convert to fraction form
    127,850.40/191,775.60 = 96,746.40/x
  3. Step 3: Cross multiply
    127,850.40x = 191,775.60 × 96,746.40
  4. Step 4: Simplify right side
    127,850.40x = 18,553,598,907.84
  5. Step 5: Solve for x
    x = 18,553,598,907.84/127,850.40
  6. Step 6: Final answer
    x = 145,119.60

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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.