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Finding the Fourth Proportional to 191,593.20, 287,389.80 and 73,268.40

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Solution

The fourth proportional to 191,593.20, 287,389.80 and 73,268.40 is: 109,902.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,593.20 : 287,389.80 = 73,268.40 : x
  2. Step 2: Convert to fraction form
    191,593.20/287,389.80 = 73,268.40/x
  3. Step 3: Cross multiply
    191,593.20x = 287,389.80 × 73,268.40
  4. Step 4: Simplify right side
    191,593.20x = 21,056,590,822.32
  5. Step 5: Solve for x
    x = 21,056,590,822.32/191,593.20
  6. Step 6: Final answer
    x = 109,902.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.