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Finding the Fourth Proportional to 60,492.30, 90,661.77 and 25,391.22

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Solution

The fourth proportional to 60,492.30, 90,661.77 and 25,391.22 is: 38,054.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,492.30 : 90,661.77 = 25,391.22 : x
  2. Step 2: Convert to fraction form
    60,492.30/90,661.77 = 25,391.22/x
  3. Step 3: Cross multiply
    60,492.30x = 90,661.77 × 25,391.22
  4. Step 4: Simplify right side
    60,492.30x = 2,302,012,947.66
  5. Step 5: Solve for x
    x = 2,302,012,947.66/60,492.30
  6. Step 6: Final answer
    x = 38,054.64

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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.