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Finding the Fourth Proportional to 357,170.11, 535,693.50 and 101,020.57

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Solution

The fourth proportional to 357,170.11, 535,693.50 and 101,020.57 is: 151,513.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,170.11 : 535,693.50 = 101,020.57 : x
  2. Step 2: Convert to fraction form
    357,170.11/535,693.50 = 101,020.57/x
  3. Step 3: Cross multiply
    357,170.11x = 535,693.50 × 101,020.57
  4. Step 4: Simplify right side
    357,170.11x = 54,116,061,376.06
  5. Step 5: Solve for x
    x = 54,116,061,376.06/357,170.11
  6. Step 6: Final answer
    x = 151,513.41

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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.