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Finding the Fourth Proportional to 191,720.80, 264,569.52 and 106,832.80

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Solution

The fourth proportional to 191,720.80, 264,569.52 and 106,832.80 is: 147,426.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,720.80 : 264,569.52 = 106,832.80 : x
  2. Step 2: Convert to fraction form
    191,720.80/264,569.52 = 106,832.80/x
  3. Step 3: Cross multiply
    191,720.80x = 264,569.52 × 106,832.80
  4. Step 4: Simplify right side
    191,720.80x = 28,264,702,616.26
  5. Step 5: Solve for x
    x = 28,264,702,616.26/191,720.80
  6. Step 6: Final answer
    x = 147,426.38

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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.