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Finding the Fourth Proportional to 237,235.40, 355,624.50 and 87,393.78

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Solution

The fourth proportional to 237,235.40, 355,624.50 and 87,393.78 is: 131,006.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,235.40 : 355,624.50 = 87,393.78 : x
  2. Step 2: Convert to fraction form
    237,235.40/355,624.50 = 87,393.78/x
  3. Step 3: Cross multiply
    237,235.40x = 355,624.50 × 87,393.78
  4. Step 4: Simplify right side
    237,235.40x = 31,079,369,315.61
  5. Step 5: Solve for x
    x = 31,079,369,315.61/237,235.40
  6. Step 6: Final answer
    x = 131,006.46

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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.