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Finding the Fourth Proportional to 316,246.56, 474,525.71 and 147,778.52

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Solution

The fourth proportional to 316,246.56, 474,525.71 and 147,778.52 is: 221,740.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,246.56 : 474,525.71 = 147,778.52 : x
  2. Step 2: Convert to fraction form
    316,246.56/474,525.71 = 147,778.52/x
  3. Step 3: Cross multiply
    316,246.56x = 474,525.71 × 147,778.52
  4. Step 4: Simplify right side
    316,246.56x = 70,124,704,014.23
  5. Step 5: Solve for x
    x = 70,124,704,014.23/316,246.56
  6. Step 6: Final answer
    x = 221,740.61

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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.