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Finding the Fourth Proportional to 94,889.40, 130,945.50 and 52,449.72

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Solution

The fourth proportional to 94,889.40, 130,945.50 and 52,449.72 is: 72,379.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,889.40 : 130,945.50 = 52,449.72 : x
  2. Step 2: Convert to fraction form
    94,889.40/130,945.50 = 52,449.72/x
  3. Step 3: Cross multiply
    94,889.40x = 130,945.50 × 52,449.72
  4. Step 4: Simplify right side
    94,889.40x = 6,868,054,810.26
  5. Step 5: Solve for x
    x = 6,868,054,810.26/94,889.40
  6. Step 6: Final answer
    x = 72,379.58

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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.