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Finding the Fourth Proportional to 368,507.34, 552,411.09 and 144,011.79

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Solution

The fourth proportional to 368,507.34, 552,411.09 and 144,011.79 is: 215,880.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,507.34 : 552,411.09 = 144,011.79 : x
  2. Step 2: Convert to fraction form
    368,507.34/552,411.09 = 144,011.79/x
  3. Step 3: Cross multiply
    368,507.34x = 552,411.09 × 144,011.79
  4. Step 4: Simplify right side
    368,507.34x = 79,553,709,886.75
  5. Step 5: Solve for x
    x = 79,553,709,886.75/368,507.34
  6. Step 6: Final answer
    x = 215,880.94

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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.