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Finding the Fourth Proportional to 525,012.06, 787,529.25 and 188,074.62

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Solution

The fourth proportional to 525,012.06, 787,529.25 and 188,074.62 is: 282,115.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,012.06 : 787,529.25 = 188,074.62 : x
  2. Step 2: Convert to fraction form
    525,012.06/787,529.25 = 188,074.62/x
  3. Step 3: Cross multiply
    525,012.06x = 787,529.25 × 188,074.62
  4. Step 4: Simplify right side
    525,012.06x = 148,114,264,432.64
  5. Step 5: Solve for x
    x = 148,114,264,432.64/525,012.06
  6. Step 6: Final answer
    x = 282,115.93

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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.