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Finding the Fourth Proportional to 140,094.16, 193,322.04 and 79,679.48

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Solution

The fourth proportional to 140,094.16, 193,322.04 and 79,679.48 is: 109,953.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,094.16 : 193,322.04 = 79,679.48 : x
  2. Step 2: Convert to fraction form
    140,094.16/193,322.04 = 79,679.48/x
  3. Step 3: Cross multiply
    140,094.16x = 193,322.04 × 79,679.48
  4. Step 4: Simplify right side
    140,094.16x = 15,403,799,619.74
  5. Step 5: Solve for x
    x = 15,403,799,619.74/140,094.16
  6. Step 6: Final answer
    x = 109,953.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.