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Finding the Fourth Proportional to 60,411.36, 90,649.64 and 35,500.08

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Solution

The fourth proportional to 60,411.36, 90,649.64 and 35,500.08 is: 53,269.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,411.36 : 90,649.64 = 35,500.08 : x
  2. Step 2: Convert to fraction form
    60,411.36/90,649.64 = 35,500.08/x
  3. Step 3: Cross multiply
    60,411.36x = 90,649.64 × 35,500.08
  4. Step 4: Simplify right side
    60,411.36x = 3,218,069,471.97
  5. Step 5: Solve for x
    x = 3,218,069,471.97/60,411.36
  6. Step 6: Final answer
    x = 53,269.28

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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.