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Finding the Fourth Proportional to 239,384.49, 359,129.29 and 70,918.01

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Solution

The fourth proportional to 239,384.49, 359,129.29 and 70,918.01 is: 106,392.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,384.49 : 359,129.29 = 70,918.01 : x
  2. Step 2: Convert to fraction form
    239,384.49/359,129.29 = 70,918.01/x
  3. Step 3: Cross multiply
    239,384.49x = 359,129.29 × 70,918.01
  4. Step 4: Simplify right side
    239,384.49x = 25,468,732,783.87
  5. Step 5: Solve for x
    x = 25,468,732,783.87/239,384.49
  6. Step 6: Final answer
    x = 106,392.58

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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.