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Finding the Fourth Proportional to 94,139.46, 129,913.29 and 51,698.29

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Solution

The fourth proportional to 94,139.46, 129,913.29 and 51,698.29 is: 71,344.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,139.46 : 129,913.29 = 51,698.29 : x
  2. Step 2: Convert to fraction form
    94,139.46/129,913.29 = 51,698.29/x
  3. Step 3: Cross multiply
    94,139.46x = 129,913.29 × 51,698.29
  4. Step 4: Simplify right side
    94,139.46x = 6,716,294,941.27
  5. Step 5: Solve for x
    x = 6,716,294,941.27/94,139.46
  6. Step 6: Final answer
    x = 71,344.10

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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.