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Finding the Fourth Proportional to 251,685.20, 377,527.80 and 242,008.40

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Solution

The fourth proportional to 251,685.20, 377,527.80 and 242,008.40 is: 363,012.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,685.20 : 377,527.80 = 242,008.40 : x
  2. Step 2: Convert to fraction form
    251,685.20/377,527.80 = 242,008.40/x
  3. Step 3: Cross multiply
    251,685.20x = 377,527.80 × 242,008.40
  4. Step 4: Simplify right side
    251,685.20x = 91,364,898,833.52
  5. Step 5: Solve for x
    x = 91,364,898,833.52/251,685.20
  6. Step 6: Final answer
    x = 363,012.60

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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.