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Finding the Fourth Proportional to 472,247.15, 708,370.73 and 156,714.35

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Solution

The fourth proportional to 472,247.15, 708,370.73 and 156,714.35 is: 235,071.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,247.15 : 708,370.73 = 156,714.35 : x
  2. Step 2: Convert to fraction form
    472,247.15/708,370.73 = 156,714.35/x
  3. Step 3: Cross multiply
    472,247.15x = 708,370.73 × 156,714.35
  4. Step 4: Simplify right side
    472,247.15x = 111,011,858,510.98
  5. Step 5: Solve for x
    x = 111,011,858,510.98/472,247.15
  6. Step 6: Final answer
    x = 235,071.53

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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.