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Finding the Fourth Proportional to 259,317.55, 357,724.79 and 173,249.01

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Solution

The fourth proportional to 259,317.55, 357,724.79 and 173,249.01 is: 238,994.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,317.55 : 357,724.79 = 173,249.01 : x
  2. Step 2: Convert to fraction form
    259,317.55/357,724.79 = 173,249.01/x
  3. Step 3: Cross multiply
    259,317.55x = 357,724.79 × 173,249.01
  4. Step 4: Simplify right side
    259,317.55x = 61,975,465,503.40
  5. Step 5: Solve for x
    x = 61,975,465,503.40/259,317.55
  6. Step 6: Final answer
    x = 238,994.49

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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.