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Finding the Fourth Proportional to 91,076.55, 125,635.10 and 53,343.51

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Solution

The fourth proportional to 91,076.55, 125,635.10 and 53,343.51 is: 73,584.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,076.55 : 125,635.10 = 53,343.51 : x
  2. Step 2: Convert to fraction form
    91,076.55/125,635.10 = 53,343.51/x
  3. Step 3: Cross multiply
    91,076.55x = 125,635.10 × 53,343.51
  4. Step 4: Simplify right side
    91,076.55x = 6,701,816,946.48
  5. Step 5: Solve for x
    x = 6,701,816,946.48/91,076.55
  6. Step 6: Final answer
    x = 73,584.44

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1.5x scale

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.