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Finding the Fourth Proportional to 359,376.84, 538,907.39 and 134,579.61

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Solution

The fourth proportional to 359,376.84, 538,907.39 and 134,579.61 is: 201,810.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,376.84 : 538,907.39 = 134,579.61 : x
  2. Step 2: Convert to fraction form
    359,376.84/538,907.39 = 134,579.61/x
  3. Step 3: Cross multiply
    359,376.84x = 538,907.39 × 134,579.61
  4. Step 4: Simplify right side
    359,376.84x = 72,525,948,225.00
  5. Step 5: Solve for x
    x = 72,525,948,225.00/359,376.84
  6. Step 6: Final answer
    x = 201,810.30

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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.