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Finding the Fourth Proportional to 175,710.62, 263,532.41 and 85,662.95

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Solution

The fourth proportional to 175,710.62, 263,532.41 and 85,662.95 is: 128,478.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,710.62 : 263,532.41 = 85,662.95 : x
  2. Step 2: Convert to fraction form
    175,710.62/263,532.41 = 85,662.95/x
  3. Step 3: Cross multiply
    175,710.62x = 263,532.41 × 85,662.95
  4. Step 4: Simplify right side
    175,710.62x = 22,574,963,212.45
  5. Step 5: Solve for x
    x = 22,574,963,212.45/175,710.62
  6. Step 6: Final answer
    x = 128,478.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.