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Finding the Fourth Proportional to 265,988.20, 367,064.10 and 145,130.04

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Solution

The fourth proportional to 265,988.20, 367,064.10 and 145,130.04 is: 200,279.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,988.20 : 367,064.10 = 145,130.04 : x
  2. Step 2: Convert to fraction form
    265,988.20/367,064.10 = 145,130.04/x
  3. Step 3: Cross multiply
    265,988.20x = 367,064.10 × 145,130.04
  4. Step 4: Simplify right side
    265,988.20x = 53,272,027,515.56
  5. Step 5: Solve for x
    x = 53,272,027,515.56/265,988.20
  6. Step 6: Final answer
    x = 200,279.66

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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.