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Finding the Fourth Proportional to 151,200.84, 208,630.26 and 87,535.56

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Solution

The fourth proportional to 151,200.84, 208,630.26 and 87,535.56 is: 120,783.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,200.84 : 208,630.26 = 87,535.56 : x
  2. Step 2: Convert to fraction form
    151,200.84/208,630.26 = 87,535.56/x
  3. Step 3: Cross multiply
    151,200.84x = 208,630.26 × 87,535.56
  4. Step 4: Simplify right side
    151,200.84x = 18,262,566,642.05
  5. Step 5: Solve for x
    x = 18,262,566,642.05/151,200.84
  6. Step 6: Final answer
    x = 120,783.50

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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.