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Finding the Fourth Proportional to 369,392.33, 554,337.61 and 144,724.59

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Solution

The fourth proportional to 369,392.33, 554,337.61 and 144,724.59 is: 217,184.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,392.33 : 554,337.61 = 144,724.59 : x
  2. Step 2: Convert to fraction form
    369,392.33/554,337.61 = 144,724.59/x
  3. Step 3: Cross multiply
    369,392.33x = 554,337.61 × 144,724.59
  4. Step 4: Simplify right side
    369,392.33x = 80,226,282,967.02
  5. Step 5: Solve for x
    x = 80,226,282,967.02/369,392.33
  6. Step 6: Final answer
    x = 217,184.48

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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.