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Finding the Fourth Proportional to 375,745.48, 563,619.35 and 91,436.07

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Solution

The fourth proportional to 375,745.48, 563,619.35 and 91,436.07 is: 137,154.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,745.48 : 563,619.35 = 91,436.07 : x
  2. Step 2: Convert to fraction form
    375,745.48/563,619.35 = 91,436.07/x
  3. Step 3: Cross multiply
    375,745.48x = 563,619.35 × 91,436.07
  4. Step 4: Simplify right side
    375,745.48x = 51,535,138,339.95
  5. Step 5: Solve for x
    x = 51,535,138,339.95/375,745.48
  6. Step 6: Final answer
    x = 137,154.38

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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.