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Finding the Fourth Proportional to 200,871.56, 301,356.06 and 60,621.80

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Solution

The fourth proportional to 200,871.56, 301,356.06 and 60,621.80 is: 90,947.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,871.56 : 301,356.06 = 60,621.80 : x
  2. Step 2: Convert to fraction form
    200,871.56/301,356.06 = 60,621.80/x
  3. Step 3: Cross multiply
    200,871.56x = 301,356.06 × 60,621.80
  4. Step 4: Simplify right side
    200,871.56x = 18,268,746,798.11
  5. Step 5: Solve for x
    x = 18,268,746,798.11/200,871.56
  6. Step 6: Final answer
    x = 90,947.40

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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.