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Finding the Fourth Proportional to 92,798.39, 128,062.11 and 50,356.92

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Solution

The fourth proportional to 92,798.39, 128,062.11 and 50,356.92 is: 69,492.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,798.39 : 128,062.11 = 50,356.92 : x
  2. Step 2: Convert to fraction form
    92,798.39/128,062.11 = 50,356.92/x
  3. Step 3: Cross multiply
    92,798.39x = 128,062.11 × 50,356.92
  4. Step 4: Simplify right side
    92,798.39x = 6,448,813,428.30
  5. Step 5: Solve for x
    x = 6,448,813,428.30/92,798.39
  6. Step 6: Final answer
    x = 69,492.73

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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.