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Finding the Fourth Proportional to 88,912, 122,698.56 and 49,168

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Solution

The fourth proportional to 88,912, 122,698.56 and 49,168 is: 67,851.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,912 : 122,698.56 = 49,168 : x
  2. Step 2: Convert to fraction form
    88,912/122,698.56 = 49,168/x
  3. Step 3: Cross multiply
    88,912x = 122,698.56 × 49,168
  4. Step 4: Simplify right side
    88,912x = 6,032,842,798.08
  5. Step 5: Solve for x
    x = 6,032,842,798.08/88,912
  6. Step 6: Final answer
    x = 67,851.84

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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.