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Finding the Fourth Proportional to 463,529.92, 695,330.82 and 139,292.70

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Solution

The fourth proportional to 463,529.92, 695,330.82 and 139,292.70 is: 208,949.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,529.92 : 695,330.82 = 139,292.70 : x
  2. Step 2: Convert to fraction form
    463,529.92/695,330.82 = 139,292.70/x
  3. Step 3: Cross multiply
    463,529.92x = 695,330.82 × 139,292.70
  4. Step 4: Simplify right side
    463,529.92x = 96,854,507,311.01
  5. Step 5: Solve for x
    x = 96,854,507,311.01/463,529.92
  6. Step 6: Final answer
    x = 208,949.85

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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.