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Finding the Fourth Proportional to 127,817.70, 191,726.55 and 127,040.10

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Solution

The fourth proportional to 127,817.70, 191,726.55 and 127,040.10 is: 190,560.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,817.70 : 191,726.55 = 127,040.10 : x
  2. Step 2: Convert to fraction form
    127,817.70/191,726.55 = 127,040.10/x
  3. Step 3: Cross multiply
    127,817.70x = 191,726.55 × 127,040.10
  4. Step 4: Simplify right side
    127,817.70x = 24,356,960,084.66
  5. Step 5: Solve for x
    x = 24,356,960,084.66/127,817.70
  6. Step 6: Final answer
    x = 190,560.15

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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.