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Finding the Fourth Proportional to 88,756.88, 122,490.60 and 51,028.88

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Solution

The fourth proportional to 88,756.88, 122,490.60 and 51,028.88 is: 70,423.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,756.88 : 122,490.60 = 51,028.88 : x
  2. Step 2: Convert to fraction form
    88,756.88/122,490.60 = 51,028.88/x
  3. Step 3: Cross multiply
    88,756.88x = 122,490.60 × 51,028.88
  4. Step 4: Simplify right side
    88,756.88x = 6,250,558,128.53
  5. Step 5: Solve for x
    x = 6,250,558,128.53/88,756.88
  6. Step 6: Final answer
    x = 70,423.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.