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Finding the Fourth Proportional to 93,137.38, 128,532.38 and 57,348.04

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Solution

The fourth proportional to 93,137.38, 128,532.38 and 57,348.04 is: 79,142.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,137.38 : 128,532.38 = 57,348.04 : x
  2. Step 2: Convert to fraction form
    93,137.38/128,532.38 = 57,348.04/x
  3. Step 3: Cross multiply
    93,137.38x = 128,532.38 × 57,348.04
  4. Step 4: Simplify right side
    93,137.38x = 7,371,080,069.54
  5. Step 5: Solve for x
    x = 7,371,080,069.54/93,137.38
  6. Step 6: Final answer
    x = 79,142.02

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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.