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Finding the Fourth Proportional to 342,521.73, 513,784.73 and 89,799.95

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Solution

The fourth proportional to 342,521.73, 513,784.73 and 89,799.95 is: 134,700.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,521.73 : 513,784.73 = 89,799.95 : x
  2. Step 2: Convert to fraction form
    342,521.73/513,784.73 = 89,799.95/x
  3. Step 3: Cross multiply
    342,521.73x = 513,784.73 × 89,799.95
  4. Step 4: Simplify right side
    342,521.73x = 46,137,843,064.76
  5. Step 5: Solve for x
    x = 46,137,843,064.76/342,521.73
  6. Step 6: Final answer
    x = 134,700.48

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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.