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Finding the Fourth Proportional to 310,870.20, 466,305.30 and 236,220.60

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Solution

The fourth proportional to 310,870.20, 466,305.30 and 236,220.60 is: 354,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,870.20 : 466,305.30 = 236,220.60 : x
  2. Step 2: Convert to fraction form
    310,870.20/466,305.30 = 236,220.60/x
  3. Step 3: Cross multiply
    310,870.20x = 466,305.30 × 236,220.60
  4. Step 4: Simplify right side
    310,870.20x = 110,150,917,749.18
  5. Step 5: Solve for x
    x = 110,150,917,749.18/310,870.20
  6. Step 6: Final answer
    x = 354,330.90

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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.