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Finding the Fourth Proportional to 127,962.70, 191,598.45 and 100,314.70

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Solution

The fourth proportional to 127,962.70, 191,598.45 and 100,314.70 is: 150,201.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,962.70 : 191,598.45 = 100,314.70 : x
  2. Step 2: Convert to fraction form
    127,962.70/191,598.45 = 100,314.70/x
  3. Step 3: Cross multiply
    127,962.70x = 191,598.45 × 100,314.70
  4. Step 4: Simplify right side
    127,962.70x = 19,220,141,032.22
  5. Step 5: Solve for x
    x = 19,220,141,032.22/127,962.70
  6. Step 6: Final answer
    x = 150,201.12

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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.