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Finding the Fourth Proportional to 94,211.59, 130,043.19 and 61,969.90

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Solution

The fourth proportional to 94,211.59, 130,043.19 and 61,969.90 is: 85,538.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,211.59 : 130,043.19 = 61,969.90 : x
  2. Step 2: Convert to fraction form
    94,211.59/130,043.19 = 61,969.90/x
  3. Step 3: Cross multiply
    94,211.59x = 130,043.19 × 61,969.90
  4. Step 4: Simplify right side
    94,211.59x = 8,058,763,479.98
  5. Step 5: Solve for x
    x = 8,058,763,479.98/94,211.59
  6. Step 6: Final answer
    x = 85,538.98

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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.