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Finding the Fourth Proportional to 522,376.66, 783,566.22 and 143,302.90

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Solution

The fourth proportional to 522,376.66, 783,566.22 and 143,302.90 is: 214,954.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,376.66 : 783,566.22 = 143,302.90 : x
  2. Step 2: Convert to fraction form
    522,376.66/783,566.22 = 143,302.90/x
  3. Step 3: Cross multiply
    522,376.66x = 783,566.22 × 143,302.90
  4. Step 4: Simplify right side
    522,376.66x = 112,287,311,668.04
  5. Step 5: Solve for x
    x = 112,287,311,668.04/522,376.66
  6. Step 6: Final answer
    x = 214,954.69

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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.