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Finding the Fourth Proportional to 91,175.48, 125,810.88 and 50,891.48

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Solution

The fourth proportional to 91,175.48, 125,810.88 and 50,891.48 is: 70,223.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,175.48 : 125,810.88 = 50,891.48 : x
  2. Step 2: Convert to fraction form
    91,175.48/125,810.88 = 50,891.48/x
  3. Step 3: Cross multiply
    91,175.48x = 125,810.88 × 50,891.48
  4. Step 4: Simplify right side
    91,175.48x = 6,402,701,883.30
  5. Step 5: Solve for x
    x = 6,402,701,883.30/91,175.48
  6. Step 6: Final answer
    x = 70,223.94

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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.