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Finding the Fourth Proportional to 338,187.11, 507,161.02 and 98,251.11

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Solution

The fourth proportional to 338,187.11, 507,161.02 and 98,251.11 is: 147,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,187.11 : 507,161.02 = 98,251.11 : x
  2. Step 2: Convert to fraction form
    338,187.11/507,161.02 = 98,251.11/x
  3. Step 3: Cross multiply
    338,187.11x = 507,161.02 × 98,251.11
  4. Step 4: Simplify right side
    338,187.11x = 49,829,130,627.93
  5. Step 5: Solve for x
    x = 49,829,130,627.93/338,187.11
  6. Step 6: Final answer
    x = 147,341.90

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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.