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Finding the Fourth Proportional to 91,270.50, 125,953.29 and 51,526.50

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Solution

The fourth proportional to 91,270.50, 125,953.29 and 51,526.50 is: 71,106.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,270.50 : 125,953.29 = 51,526.50 : x
  2. Step 2: Convert to fraction form
    91,270.50/125,953.29 = 51,526.50/x
  3. Step 3: Cross multiply
    91,270.50x = 125,953.29 × 51,526.50
  4. Step 4: Simplify right side
    91,270.50x = 6,489,932,197.19
  5. Step 5: Solve for x
    x = 6,489,932,197.19/91,270.50
  6. Step 6: Final answer
    x = 71,106.57

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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.