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Finding the Fourth Proportional to 354,318.03, 531,320.67 and 101,541.15

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Solution

The fourth proportional to 354,318.03, 531,320.67 and 101,541.15 is: 152,266.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,318.03 : 531,320.67 = 101,541.15 : x
  2. Step 2: Convert to fraction form
    354,318.03/531,320.67 = 101,541.15/x
  3. Step 3: Cross multiply
    354,318.03x = 531,320.67 × 101,541.15
  4. Step 4: Simplify right side
    354,318.03x = 53,950,911,850.57
  5. Step 5: Solve for x
    x = 53,950,911,850.57/354,318.03
  6. Step 6: Final answer
    x = 152,266.91

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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.