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Finding the Fourth Proportional to 338,501.88, 507,218.76 and 124,975.92

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Solution

The fourth proportional to 338,501.88, 507,218.76 and 124,975.92 is: 187,266.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,501.88 : 507,218.76 = 124,975.92 : x
  2. Step 2: Convert to fraction form
    338,501.88/507,218.76 = 124,975.92/x
  3. Step 3: Cross multiply
    338,501.88x = 507,218.76 × 124,975.92
  4. Step 4: Simplify right side
    338,501.88x = 63,390,131,172.26
  5. Step 5: Solve for x
    x = 63,390,131,172.26/338,501.88
  6. Step 6: Final answer
    x = 187,266.70

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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.