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Finding the Fourth Proportional to 316,601.60, 474,902.40 and 210,675.20

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Solution

The fourth proportional to 316,601.60, 474,902.40 and 210,675.20 is: 316,012.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,601.60 : 474,902.40 = 210,675.20 : x
  2. Step 2: Convert to fraction form
    316,601.60/474,902.40 = 210,675.20/x
  3. Step 3: Cross multiply
    316,601.60x = 474,902.40 × 210,675.20
  4. Step 4: Simplify right side
    316,601.60x = 100,050,158,100.48
  5. Step 5: Solve for x
    x = 100,050,158,100.48/316,601.60
  6. Step 6: Final answer
    x = 316,012.80

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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.