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Finding the Fourth Proportional to 67,504, 93,154.56 and 39,225.60

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Solution

The fourth proportional to 67,504, 93,154.56 and 39,225.60 is: 54,130.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,504 : 93,154.56 = 39,225.60 : x
  2. Step 2: Convert to fraction form
    67,504/93,154.56 = 39,225.60/x
  3. Step 3: Cross multiply
    67,504x = 93,154.56 × 39,225.60
  4. Step 4: Simplify right side
    67,504x = 3,654,043,508.74
  5. Step 5: Solve for x
    x = 3,654,043,508.74/67,504
  6. Step 6: Final answer
    x = 54,130.77

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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.