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Finding the Fourth Proportional to 358,392.45, 537,681.77 and 133,754.59

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Solution

The fourth proportional to 358,392.45, 537,681.77 and 133,754.59 is: 200,666.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,392.45 : 537,681.77 = 133,754.59 : x
  2. Step 2: Convert to fraction form
    358,392.45/537,681.77 = 133,754.59/x
  3. Step 3: Cross multiply
    358,392.45x = 537,681.77 × 133,754.59
  4. Step 4: Simplify right side
    358,392.45x = 71,917,405,577.92
  5. Step 5: Solve for x
    x = 71,917,405,577.92/358,392.45
  6. Step 6: Final answer
    x = 200,666.63

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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.