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Finding the Fourth Proportional to 117,094.86, 175,642.02 and 90,479.54

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Solution

The fourth proportional to 117,094.86, 175,642.02 and 90,479.54 is: 135,719.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,094.86 : 175,642.02 = 90,479.54 : x
  2. Step 2: Convert to fraction form
    117,094.86/175,642.02 = 90,479.54/x
  3. Step 3: Cross multiply
    117,094.86x = 175,642.02 × 90,479.54
  4. Step 4: Simplify right side
    117,094.86x = 15,892,009,613.38
  5. Step 5: Solve for x
    x = 15,892,009,613.38/117,094.86
  6. Step 6: Final answer
    x = 135,719.11

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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.