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Finding the Fourth Proportional to 239,803.84, 359,519.46 and 155,385.64

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Solution

The fourth proportional to 239,803.84, 359,519.46 and 155,385.64 is: 232,957.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,803.84 : 359,519.46 = 155,385.64 : x
  2. Step 2: Convert to fraction form
    239,803.84/359,519.46 = 155,385.64/x
  3. Step 3: Cross multiply
    239,803.84x = 359,519.46 × 155,385.64
  4. Step 4: Simplify right side
    239,803.84x = 55,864,161,384.55
  5. Step 5: Solve for x
    x = 55,864,161,384.55/239,803.84
  6. Step 6: Final answer
    x = 232,957.74

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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.