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Finding the Fourth Proportional to 316,576.15, 474,743.06 and 156,597.17

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Solution

The fourth proportional to 316,576.15, 474,743.06 and 156,597.17 is: 234,835.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,576.15 : 474,743.06 = 156,597.17 : x
  2. Step 2: Convert to fraction form
    316,576.15/474,743.06 = 156,597.17/x
  3. Step 3: Cross multiply
    316,576.15x = 474,743.06 × 156,597.17
  4. Step 4: Simplify right side
    316,576.15x = 74,343,417,103.68
  5. Step 5: Solve for x
    x = 74,343,417,103.68/316,576.15
  6. Step 6: Final answer
    x = 234,835.81

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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.