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Finding the Fourth Proportional to 89,772.57, 123,880.57 and 49,484.25

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Solution

The fourth proportional to 89,772.57, 123,880.57 and 49,484.25 is: 68,285.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,772.57 : 123,880.57 = 49,484.25 : x
  2. Step 2: Convert to fraction form
    89,772.57/123,880.57 = 49,484.25/x
  3. Step 3: Cross multiply
    89,772.57x = 123,880.57 × 49,484.25
  4. Step 4: Simplify right side
    89,772.57x = 6,130,137,096.02
  5. Step 5: Solve for x
    x = 6,130,137,096.02/89,772.57
  6. Step 6: Final answer
    x = 68,285.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.