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Finding the Fourth Proportional to 165,393.29, 228,242.61 and 89,941.79

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Solution

The fourth proportional to 165,393.29, 228,242.61 and 89,941.79 is: 124,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,393.29 : 228,242.61 = 89,941.79 : x
  2. Step 2: Convert to fraction form
    165,393.29/228,242.61 = 89,941.79/x
  3. Step 3: Cross multiply
    165,393.29x = 228,242.61 × 89,941.79
  4. Step 4: Simplify right side
    165,393.29x = 20,528,549,468.28
  5. Step 5: Solve for x
    x = 20,528,549,468.28/165,393.29
  6. Step 6: Final answer
    x = 124,119.60

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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.