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Finding the Fourth Proportional to 91,536.50, 126,322.29 and 51,792.50

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Solution

The fourth proportional to 91,536.50, 126,322.29 and 51,792.50 is: 71,474.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,536.50 : 126,322.29 = 51,792.50 : x
  2. Step 2: Convert to fraction form
    91,536.50/126,322.29 = 51,792.50/x
  3. Step 3: Cross multiply
    91,536.50x = 126,322.29 × 51,792.50
  4. Step 4: Simplify right side
    91,536.50x = 6,542,547,204.83
  5. Step 5: Solve for x
    x = 6,542,547,204.83/91,536.50
  6. Step 6: Final answer
    x = 71,474.74

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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.