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Finding the Fourth Proportional to 359,038.65, 538,571.64 and 134,375.43

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Solution

The fourth proportional to 359,038.65, 538,571.64 and 134,375.43 is: 201,568.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,038.65 : 538,571.64 = 134,375.43 : x
  2. Step 2: Convert to fraction form
    359,038.65/538,571.64 = 134,375.43/x
  3. Step 3: Cross multiply
    359,038.65x = 538,571.64 × 134,375.43
  4. Step 4: Simplify right side
    359,038.65x = 72,370,795,710.81
  5. Step 5: Solve for x
    x = 72,370,795,710.81/359,038.65
  6. Step 6: Final answer
    x = 201,568.26

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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.