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Finding the Fourth Proportional to 525,055.80, 787,583.70 and 151,078.80

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Solution

The fourth proportional to 525,055.80, 787,583.70 and 151,078.80 is: 226,618.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,055.80 : 787,583.70 = 151,078.80 : x
  2. Step 2: Convert to fraction form
    525,055.80/787,583.70 = 151,078.80/x
  3. Step 3: Cross multiply
    525,055.80x = 787,583.70 × 151,078.80
  4. Step 4: Simplify right side
    525,055.80x = 118,987,200,295.56
  5. Step 5: Solve for x
    x = 118,987,200,295.56/525,055.80
  6. Step 6: Final answer
    x = 226,618.20

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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.