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Finding the Fourth Proportional to 295,740.74, 443,479.35 and 85,328.66

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Solution

The fourth proportional to 295,740.74, 443,479.35 and 85,328.66 is: 127,954.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,740.74 : 443,479.35 = 85,328.66 : x
  2. Step 2: Convert to fraction form
    295,740.74/443,479.35 = 85,328.66/x
  3. Step 3: Cross multiply
    295,740.74x = 443,479.35 × 85,328.66
  4. Step 4: Simplify right side
    295,740.74x = 37,841,498,673.17
  5. Step 5: Solve for x
    x = 37,841,498,673.17/295,740.74
  6. Step 6: Final answer
    x = 127,954.97

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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.