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Finding the Fourth Proportional to 472,349.47, 708,370.69 and 156,721.63

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Solution

The fourth proportional to 472,349.47, 708,370.69 and 156,721.63 is: 235,031.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,349.47 : 708,370.69 = 156,721.63 : x
  2. Step 2: Convert to fraction form
    472,349.47/708,370.69 = 156,721.63/x
  3. Step 3: Cross multiply
    472,349.47x = 708,370.69 × 156,721.63
  4. Step 4: Simplify right side
    472,349.47x = 111,017,009,181.03
  5. Step 5: Solve for x
    x = 111,017,009,181.03/472,349.47
  6. Step 6: Final answer
    x = 235,031.51

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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.