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Finding the Fourth Proportional to 72,583.40, 108,893.64 and 35,161.40

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Solution

The fourth proportional to 72,583.40, 108,893.64 and 35,161.40 is: 52,751.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,583.40 : 108,893.64 = 35,161.40 : x
  2. Step 2: Convert to fraction form
    72,583.40/108,893.64 = 35,161.40/x
  3. Step 3: Cross multiply
    72,583.40x = 108,893.64 × 35,161.40
  4. Step 4: Simplify right side
    72,583.40x = 3,828,852,833.50
  5. Step 5: Solve for x
    x = 3,828,852,833.50/72,583.40
  6. Step 6: Final answer
    x = 52,751.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.