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Finding the Fourth Proportional to 201,281.58, 278,052.03 and 190,652.76

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Solution

The fourth proportional to 201,281.58, 278,052.03 and 190,652.76 is: 263,369.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,281.58 : 278,052.03 = 190,652.76 : x
  2. Step 2: Convert to fraction form
    201,281.58/278,052.03 = 190,652.76/x
  3. Step 3: Cross multiply
    201,281.58x = 278,052.03 × 190,652.76
  4. Step 4: Simplify right side
    201,281.58x = 53,011,386,943.10
  5. Step 5: Solve for x
    x = 53,011,386,943.10/201,281.58
  6. Step 6: Final answer
    x = 263,369.29

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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.