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Finding the Fourth Proportional to 127,460.10, 191,190.15 and 68,411.10

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Solution

The fourth proportional to 127,460.10, 191,190.15 and 68,411.10 is: 102,616.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,460.10 : 191,190.15 = 68,411.10 : x
  2. Step 2: Convert to fraction form
    127,460.10/191,190.15 = 68,411.10/x
  3. Step 3: Cross multiply
    127,460.10x = 191,190.15 × 68,411.10
  4. Step 4: Simplify right side
    127,460.10x = 13,079,528,470.67
  5. Step 5: Solve for x
    x = 13,079,528,470.67/127,460.10
  6. Step 6: Final answer
    x = 102,616.65

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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.