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Finding the Fourth Proportional to 310,482.89, 465,710.35 and 108,221.62

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Solution

The fourth proportional to 310,482.89, 465,710.35 and 108,221.62 is: 162,327.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,482.89 : 465,710.35 = 108,221.62 : x
  2. Step 2: Convert to fraction form
    310,482.89/465,710.35 = 108,221.62/x
  3. Step 3: Cross multiply
    310,482.89x = 465,710.35 × 108,221.62
  4. Step 4: Simplify right side
    310,482.89x = 50,399,926,199.22
  5. Step 5: Solve for x
    x = 50,399,926,199.22/310,482.89
  6. Step 6: Final answer
    x = 162,327.55

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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.