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Finding the Fourth Proportional to 127,970.06, 191,955.09 and 65,600.78

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Solution

The fourth proportional to 127,970.06, 191,955.09 and 65,600.78 is: 98,401.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,970.06 : 191,955.09 = 65,600.78 : x
  2. Step 2: Convert to fraction form
    127,970.06/191,955.09 = 65,600.78/x
  3. Step 3: Cross multiply
    127,970.06x = 191,955.09 × 65,600.78
  4. Step 4: Simplify right side
    127,970.06x = 12,592,403,628.97
  5. Step 5: Solve for x
    x = 12,592,403,628.97/127,970.06
  6. Step 6: Final answer
    x = 98,401.17

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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.