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Finding the Fourth Proportional to 310,881.32, 466,230.46 and 121,299.24

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Solution

The fourth proportional to 310,881.32, 466,230.46 and 121,299.24 is: 181,913.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,881.32 : 466,230.46 = 121,299.24 : x
  2. Step 2: Convert to fraction form
    310,881.32/466,230.46 = 121,299.24/x
  3. Step 3: Cross multiply
    310,881.32x = 466,230.46 × 121,299.24
  4. Step 4: Simplify right side
    310,881.32x = 56,553,400,462.85
  5. Step 5: Solve for x
    x = 56,553,400,462.85/310,881.32
  6. Step 6: Final answer
    x = 181,913.15

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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.