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Finding the Fourth Proportional to 259,137.58, 357,487.68 and 151,641.67

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Solution

The fourth proportional to 259,137.58, 357,487.68 and 151,641.67 is: 209,194.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,137.58 : 357,487.68 = 151,641.67 : x
  2. Step 2: Convert to fraction form
    259,137.58/357,487.68 = 151,641.67/x
  3. Step 3: Cross multiply
    259,137.58x = 357,487.68 × 151,641.67
  4. Step 4: Simplify right side
    259,137.58x = 54,210,028,799.63
  5. Step 5: Solve for x
    x = 54,210,028,799.63/259,137.58
  6. Step 6: Final answer
    x = 209,194.01

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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.