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Finding the Fourth Proportional to 250,978.26, 346,356.03 and 136,261.74

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Solution

The fourth proportional to 250,978.26, 346,356.03 and 136,261.74 is: 188,044.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,978.26 : 346,356.03 = 136,261.74 : x
  2. Step 2: Convert to fraction form
    250,978.26/346,356.03 = 136,261.74/x
  3. Step 3: Cross multiply
    250,978.26x = 346,356.03 × 136,261.74
  4. Step 4: Simplify right side
    250,978.26x = 47,195,075,307.29
  5. Step 5: Solve for x
    x = 47,195,075,307.29/250,978.26
  6. Step 6: Final answer
    x = 188,044.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.