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Finding the Fourth Proportional to 91,017.62, 125,604.89 and 50,733.93

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Solution

The fourth proportional to 91,017.62, 125,604.89 and 50,733.93 is: 70,013.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,017.62 : 125,604.89 = 50,733.93 : x
  2. Step 2: Convert to fraction form
    91,017.62/125,604.89 = 50,733.93/x
  3. Step 3: Cross multiply
    91,017.62x = 125,604.89 × 50,733.93
  4. Step 4: Simplify right side
    91,017.62x = 6,372,429,443.25
  5. Step 5: Solve for x
    x = 6,372,429,443.25/91,017.62
  6. Step 6: Final answer
    x = 70,013.14

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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.