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Finding the Fourth Proportional to 351,458.93, 527,106.13 and 98,763.55

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Solution

The fourth proportional to 351,458.93, 527,106.13 and 98,763.55 is: 148,122.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,458.93 : 527,106.13 = 98,763.55 : x
  2. Step 2: Convert to fraction form
    351,458.93/527,106.13 = 98,763.55/x
  3. Step 3: Cross multiply
    351,458.93x = 527,106.13 × 98,763.55
  4. Step 4: Simplify right side
    351,458.93x = 52,058,873,956.42
  5. Step 5: Solve for x
    x = 52,058,873,956.42/351,458.93
  6. Step 6: Final answer
    x = 148,122.21

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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.