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Finding the Fourth Proportional to 127,960.06, 191,940.11 and 65,590.78

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Solution

The fourth proportional to 127,960.06, 191,940.11 and 65,590.78 is: 98,386.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,960.06 : 191,940.11 = 65,590.78 : x
  2. Step 2: Convert to fraction form
    127,960.06/191,940.11 = 65,590.78/x
  3. Step 3: Cross multiply
    127,960.06x = 191,940.11 × 65,590.78
  4. Step 4: Simplify right side
    127,960.06x = 12,589,501,528.19
  5. Step 5: Solve for x
    x = 12,589,501,528.19/127,960.06
  6. Step 6: Final answer
    x = 98,386.18

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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.