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Finding the Fourth Proportional to 60,104.63, 90,130.65 and 28,523.75

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Solution

The fourth proportional to 60,104.63, 90,130.65 and 28,523.75 is: 42,773.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,104.63 : 90,130.65 = 28,523.75 : x
  2. Step 2: Convert to fraction form
    60,104.63/90,130.65 = 28,523.75/x
  3. Step 3: Cross multiply
    60,104.63x = 90,130.65 × 28,523.75
  4. Step 4: Simplify right side
    60,104.63x = 2,570,863,650.54
  5. Step 5: Solve for x
    x = 2,570,863,650.54/60,104.63
  6. Step 6: Final answer
    x = 42,773.14

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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.