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Finding the Fourth Proportional to 359,282.71, 538,775.79 and 122,644.45

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Solution

The fourth proportional to 359,282.71, 538,775.79 and 122,644.45 is: 183,916.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,282.71 : 538,775.79 = 122,644.45 : x
  2. Step 2: Convert to fraction form
    359,282.71/538,775.79 = 122,644.45/x
  3. Step 3: Cross multiply
    359,282.71x = 538,775.79 × 122,644.45
  4. Step 4: Simplify right side
    359,282.71x = 66,077,860,437.87
  5. Step 5: Solve for x
    x = 66,077,860,437.87/359,282.71
  6. Step 6: Final answer
    x = 183,916.06

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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.