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Finding the Fourth Proportional to 338,616.54, 507,730.41 and 101,889.18

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Solution

The fourth proportional to 338,616.54, 507,730.41 and 101,889.18 is: 152,775.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,616.54 : 507,730.41 = 101,889.18 : x
  2. Step 2: Convert to fraction form
    338,616.54/507,730.41 = 101,889.18/x
  3. Step 3: Cross multiply
    338,616.54x = 507,730.41 × 101,889.18
  4. Step 4: Simplify right side
    338,616.54x = 51,732,235,135.96
  5. Step 5: Solve for x
    x = 51,732,235,135.96/338,616.54
  6. Step 6: Final answer
    x = 152,775.28

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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.