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Finding the Fourth Proportional to 60,693.15, 90,880.21 and 48,783.72

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Solution

The fourth proportional to 60,693.15, 90,880.21 and 48,783.72 is: 73,047.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,693.15 : 90,880.21 = 48,783.72 : x
  2. Step 2: Convert to fraction form
    60,693.15/90,880.21 = 48,783.72/x
  3. Step 3: Cross multiply
    60,693.15x = 90,880.21 × 48,783.72
  4. Step 4: Simplify right side
    60,693.15x = 4,433,474,718.18
  5. Step 5: Solve for x
    x = 4,433,474,718.18/60,693.15
  6. Step 6: Final answer
    x = 73,047.37

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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.