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Finding the Fourth Proportional to 234,529.20, 351,831.16 and 84,754.32

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Solution

The fourth proportional to 234,529.20, 351,831.16 and 84,754.32 is: 127,144.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,529.20 : 351,831.16 = 84,754.32 : x
  2. Step 2: Convert to fraction form
    234,529.20/351,831.16 = 84,754.32/x
  3. Step 3: Cross multiply
    234,529.20x = 351,831.16 × 84,754.32
  4. Step 4: Simplify right side
    234,529.20x = 29,819,210,720.61
  5. Step 5: Solve for x
    x = 29,819,210,720.61/234,529.20
  6. Step 6: Final answer
    x = 127,144.98

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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.