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Finding the Fourth Proportional to 359,038.09, 538,555.51 and 92,775.97

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Solution

The fourth proportional to 359,038.09, 538,555.51 and 92,775.97 is: 139,163.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,038.09 : 538,555.51 = 92,775.97 : x
  2. Step 2: Convert to fraction form
    359,038.09/538,555.51 = 92,775.97/x
  3. Step 3: Cross multiply
    359,038.09x = 538,555.51 × 92,775.97
  4. Step 4: Simplify right side
    359,038.09x = 49,965,009,839.09
  5. Step 5: Solve for x
    x = 49,965,009,839.09/359,038.09
  6. Step 6: Final answer
    x = 139,163.54

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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.