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Finding the Fourth Proportional to 291,718.75, 437,578.14 and 94,726.75

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Solution

The fourth proportional to 291,718.75, 437,578.14 and 94,726.75 is: 142,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,718.75 : 437,578.14 = 94,726.75 : x
  2. Step 2: Convert to fraction form
    291,718.75/437,578.14 = 94,726.75/x
  3. Step 3: Cross multiply
    291,718.75x = 437,578.14 × 94,726.75
  4. Step 4: Simplify right side
    291,718.75x = 41,450,355,073.25
  5. Step 5: Solve for x
    x = 41,450,355,073.25/291,718.75
  6. Step 6: Final answer
    x = 142,090.13

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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.