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Finding the Fourth Proportional to 91,154.70, 125,804.95 and 52,906.03

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Solution

The fourth proportional to 91,154.70, 125,804.95 and 52,906.03 is: 73,016.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,154.70 : 125,804.95 = 52,906.03 : x
  2. Step 2: Convert to fraction form
    91,154.70/125,804.95 = 52,906.03/x
  3. Step 3: Cross multiply
    91,154.70x = 125,804.95 × 52,906.03
  4. Step 4: Simplify right side
    91,154.70x = 6,655,840,012.07
  5. Step 5: Solve for x
    x = 6,655,840,012.07/91,154.70
  6. Step 6: Final answer
    x = 73,016.97

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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.