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Finding the Fourth Proportional to 188,459.64, 260,089.74 and 113,006.52

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Solution

The fourth proportional to 188,459.64, 260,089.74 and 113,006.52 is: 155,958.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,459.64 : 260,089.74 = 113,006.52 : x
  2. Step 2: Convert to fraction form
    188,459.64/260,089.74 = 113,006.52/x
  3. Step 3: Cross multiply
    188,459.64x = 260,089.74 × 113,006.52
  4. Step 4: Simplify right side
    188,459.64x = 29,391,836,405.10
  5. Step 5: Solve for x
    x = 29,391,836,405.10/188,459.64
  6. Step 6: Final answer
    x = 155,958.25

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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.