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Finding the Fourth Proportional to 316,846.55, 475,114.30 and 156,737.50

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Solution

The fourth proportional to 316,846.55, 475,114.30 and 156,737.50 is: 235,029.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,846.55 : 475,114.30 = 156,737.50 : x
  2. Step 2: Convert to fraction form
    316,846.55/475,114.30 = 156,737.50/x
  3. Step 3: Cross multiply
    316,846.55x = 475,114.30 × 156,737.50
  4. Step 4: Simplify right side
    316,846.55x = 74,468,227,596.25
  5. Step 5: Solve for x
    x = 74,468,227,596.25/316,846.55
  6. Step 6: Final answer
    x = 235,029.31

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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.