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Finding the Fourth Proportional to 93,347.89, 128,820.09 and 50,906.71

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Solution

The fourth proportional to 93,347.89, 128,820.09 and 50,906.71 is: 70,251.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,347.89 : 128,820.09 = 50,906.71 : x
  2. Step 2: Convert to fraction form
    93,347.89/128,820.09 = 50,906.71/x
  3. Step 3: Cross multiply
    93,347.89x = 128,820.09 × 50,906.71
  4. Step 4: Simplify right side
    93,347.89x = 6,557,806,963.80
  5. Step 5: Solve for x
    x = 6,557,806,963.80/93,347.89
  6. Step 6: Final answer
    x = 70,251.26

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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.