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Finding the Fourth Proportional to 472,562.10, 708,907.95 and 156,986.10

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Solution

The fourth proportional to 472,562.10, 708,907.95 and 156,986.10 is: 235,500.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,562.10 : 708,907.95 = 156,986.10 : x
  2. Step 2: Convert to fraction form
    472,562.10/708,907.95 = 156,986.10/x
  3. Step 3: Cross multiply
    472,562.10x = 708,907.95 × 156,986.10
  4. Step 4: Simplify right side
    472,562.10x = 111,288,694,329.50
  5. Step 5: Solve for x
    x = 111,288,694,329.50/472,562.10
  6. Step 6: Final answer
    x = 235,500.68

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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.