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Finding the Fourth Proportional to 188,959.80, 283,549.05 and 70,643.10

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Solution

The fourth proportional to 188,959.80, 283,549.05 and 70,643.10 is: 106,005.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,959.80 : 283,549.05 = 70,643.10 : x
  2. Step 2: Convert to fraction form
    188,959.80/283,549.05 = 70,643.10/x
  3. Step 3: Cross multiply
    188,959.80x = 283,549.05 × 70,643.10
  4. Step 4: Simplify right side
    188,959.80x = 20,030,783,894.06
  5. Step 5: Solve for x
    x = 20,030,783,894.06/188,959.80
  6. Step 6: Final answer
    x = 106,005.53

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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.