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Finding the Fourth Proportional to 117,728.70, 176,301.45 and 94,400.70

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Solution

The fourth proportional to 117,728.70, 176,301.45 and 94,400.70 is: 141,367.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,728.70 : 176,301.45 = 94,400.70 : x
  2. Step 2: Convert to fraction form
    117,728.70/176,301.45 = 94,400.70/x
  3. Step 3: Cross multiply
    117,728.70x = 176,301.45 × 94,400.70
  4. Step 4: Simplify right side
    117,728.70x = 16,642,980,291.02
  5. Step 5: Solve for x
    x = 16,642,980,291.02/117,728.70
  6. Step 6: Final answer
    x = 141,367.23

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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.