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Finding the Fourth Proportional to 368,101.72, 507,772.92 and 220,888.50

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Solution

The fourth proportional to 368,101.72, 507,772.92 and 220,888.50 is: 304,701.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,101.72 : 507,772.92 = 220,888.50 : x
  2. Step 2: Convert to fraction form
    368,101.72/507,772.92 = 220,888.50/x
  3. Step 3: Cross multiply
    368,101.72x = 507,772.92 × 220,888.50
  4. Step 4: Simplify right side
    368,101.72x = 112,161,198,639.42
  5. Step 5: Solve for x
    x = 112,161,198,639.42/368,101.72
  6. Step 6: Final answer
    x = 304,701.64

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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.