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Finding the Fourth Proportional to 342,291.93, 513,423.60 and 89,566.82

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Solution

The fourth proportional to 342,291.93, 513,423.60 and 89,566.82 is: 134,346.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,291.93 : 513,423.60 = 89,566.82 : x
  2. Step 2: Convert to fraction form
    342,291.93/513,423.60 = 89,566.82/x
  3. Step 3: Cross multiply
    342,291.93x = 513,423.60 × 89,566.82
  4. Step 4: Simplify right side
    342,291.93x = 45,985,719,164.95
  5. Step 5: Solve for x
    x = 45,985,719,164.95/342,291.93
  6. Step 6: Final answer
    x = 134,346.49

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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.