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Finding the Fourth Proportional to 375,746.97, 563,621.60 and 91,437.57

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Solution

The fourth proportional to 375,746.97, 563,621.60 and 91,437.57 is: 137,156.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,746.97 : 563,621.60 = 91,437.57 : x
  2. Step 2: Convert to fraction form
    375,746.97/563,621.60 = 91,437.57/x
  3. Step 3: Cross multiply
    375,746.97x = 563,621.60 × 91,437.57
  4. Step 4: Simplify right side
    375,746.97x = 51,536,189,732.11
  5. Step 5: Solve for x
    x = 51,536,189,732.11/375,746.97
  6. Step 6: Final answer
    x = 137,156.63

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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.