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Finding the Fourth Proportional to 250,564.59, 376,043.72 and 138,322.28

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Solution

The fourth proportional to 250,564.59, 376,043.72 and 138,322.28 is: 207,592.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,564.59 : 376,043.72 = 138,322.28 : x
  2. Step 2: Convert to fraction form
    250,564.59/376,043.72 = 138,322.28/x
  3. Step 3: Cross multiply
    250,564.59x = 376,043.72 × 138,322.28
  4. Step 4: Simplify right side
    250,564.59x = 52,015,224,978.58
  5. Step 5: Solve for x
    x = 52,015,224,978.58/250,564.59
  6. Step 6: Final answer
    x = 207,592.08

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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.