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Finding the Fourth Proportional to 91,269.66, 125,951.86 and 50,983.50

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Solution

The fourth proportional to 91,269.66, 125,951.86 and 50,983.50 is: 70,357.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,269.66 : 125,951.86 = 50,983.50 : x
  2. Step 2: Convert to fraction form
    91,269.66/125,951.86 = 50,983.50/x
  3. Step 3: Cross multiply
    91,269.66x = 125,951.86 × 50,983.50
  4. Step 4: Simplify right side
    91,269.66x = 6,421,466,654.31
  5. Step 5: Solve for x
    x = 6,421,466,654.31/91,269.66
  6. Step 6: Final answer
    x = 70,357.08

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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.