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Finding the Fourth Proportional to 472,467.80, 708,248.10 and 156,762.20

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Solution

The fourth proportional to 472,467.80, 708,248.10 and 156,762.20 is: 234,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,467.80 : 708,248.10 = 156,762.20 : x
  2. Step 2: Convert to fraction form
    472,467.80/708,248.10 = 156,762.20/x
  3. Step 3: Cross multiply
    472,467.80x = 708,248.10 × 156,762.20
  4. Step 4: Simplify right side
    472,467.80x = 111,026,530,301.82
  5. Step 5: Solve for x
    x = 111,026,530,301.82/472,467.80
  6. Step 6: Final answer
    x = 234,992.80

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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.