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Finding the Fourth Proportional to 117,778.59, 176,259.62 and 112,879.71

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Solution

The fourth proportional to 117,778.59, 176,259.62 and 112,879.71 is: 168,928.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,778.59 : 176,259.62 = 112,879.71 : x
  2. Step 2: Convert to fraction form
    117,778.59/176,259.62 = 112,879.71/x
  3. Step 3: Cross multiply
    117,778.59x = 176,259.62 × 112,879.71
  4. Step 4: Simplify right side
    117,778.59x = 19,896,134,225.91
  5. Step 5: Solve for x
    x = 19,896,134,225.91/117,778.59
  6. Step 6: Final answer
    x = 168,928.28

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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.