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Finding the Fourth Proportional to 525,006.56, 787,521 and 188,069.12

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Solution

The fourth proportional to 525,006.56, 787,521 and 188,069.12 is: 282,107.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,006.56 : 787,521 = 188,069.12 : x
  2. Step 2: Convert to fraction form
    525,006.56/787,521 = 188,069.12/x
  3. Step 3: Cross multiply
    525,006.56x = 787,521 × 188,069.12
  4. Step 4: Simplify right side
    525,006.56x = 148,108,381,451.52
  5. Step 5: Solve for x
    x = 148,108,381,451.52/525,006.56
  6. Step 6: Final answer
    x = 282,107.68

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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.