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Finding the Fourth Proportional to 114,599.80, 171,899.70 and 104,750.20

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Solution

The fourth proportional to 114,599.80, 171,899.70 and 104,750.20 is: 157,125.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,599.80 : 171,899.70 = 104,750.20 : x
  2. Step 2: Convert to fraction form
    114,599.80/171,899.70 = 104,750.20/x
  3. Step 3: Cross multiply
    114,599.80x = 171,899.70 × 104,750.20
  4. Step 4: Simplify right side
    114,599.80x = 18,006,527,954.94
  5. Step 5: Solve for x
    x = 18,006,527,954.94/114,599.80
  6. Step 6: Final answer
    x = 157,125.30

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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.