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Finding the Fourth Proportional to 357,076.79, 535,618.21 and 90,837.53

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Solution

The fourth proportional to 357,076.79, 535,618.21 and 90,837.53 is: 136,257.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,076.79 : 535,618.21 = 90,837.53 : x
  2. Step 2: Convert to fraction form
    357,076.79/535,618.21 = 90,837.53/x
  3. Step 3: Cross multiply
    357,076.79x = 535,618.21 × 90,837.53
  4. Step 4: Simplify right side
    357,076.79x = 48,654,235,219.42
  5. Step 5: Solve for x
    x = 48,654,235,219.42/357,076.79
  6. Step 6: Final answer
    x = 136,257.06

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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.