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Finding the Fourth Proportional to 375,513.74, 563,264.42 and 91,206.62

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Solution

The fourth proportional to 375,513.74, 563,264.42 and 91,206.62 is: 136,808.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,513.74 : 563,264.42 = 91,206.62 : x
  2. Step 2: Convert to fraction form
    375,513.74/563,264.42 = 91,206.62/x
  3. Step 3: Cross multiply
    375,513.74x = 563,264.42 × 91,206.62
  4. Step 4: Simplify right side
    375,513.74x = 51,373,443,914.46
  5. Step 5: Solve for x
    x = 51,373,443,914.46/375,513.74
  6. Step 6: Final answer
    x = 136,808.43

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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.