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Finding the Fourth Proportional to 92,832.68, 128,111.42 and 50,391.21

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Solution

The fourth proportional to 92,832.68, 128,111.42 and 50,391.21 is: 69,541.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,832.68 : 128,111.42 = 50,391.21 : x
  2. Step 2: Convert to fraction form
    92,832.68/128,111.42 = 50,391.21/x
  3. Step 3: Cross multiply
    92,832.68x = 128,111.42 × 50,391.21
  4. Step 4: Simplify right side
    92,832.68x = 6,455,690,075.01
  5. Step 5: Solve for x
    x = 6,455,690,075.01/92,832.68
  6. Step 6: Final answer
    x = 69,541.13

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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.