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Finding the Fourth Proportional to 127,917.99, 191,627.64 and 77,873.97

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Solution

The fourth proportional to 127,917.99, 191,627.64 and 77,873.97 is: 116,659.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,917.99 : 191,627.64 = 77,873.97 : x
  2. Step 2: Convert to fraction form
    127,917.99/191,627.64 = 77,873.97/x
  3. Step 3: Cross multiply
    127,917.99x = 191,627.64 × 77,873.97
  4. Step 4: Simplify right side
    127,917.99x = 14,922,805,088.53
  5. Step 5: Solve for x
    x = 14,922,805,088.53/127,917.99
  6. Step 6: Final answer
    x = 116,659.16

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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.