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Finding the Fourth Proportional to 92,792.52, 128,053.71 and 50,351.09

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Solution

The fourth proportional to 92,792.52, 128,053.71 and 50,351.09 is: 69,484.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,792.52 : 128,053.71 = 50,351.09 : x
  2. Step 2: Convert to fraction form
    92,792.52/128,053.71 = 50,351.09/x
  3. Step 3: Cross multiply
    92,792.52x = 128,053.71 × 50,351.09
  4. Step 4: Simplify right side
    92,792.52x = 6,447,643,236.78
  5. Step 5: Solve for x
    x = 6,447,643,236.78/92,792.52
  6. Step 6: Final answer
    x = 69,484.51

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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.