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Finding the Fourth Proportional to 191,504.87, 287,322.01 and 84,874.25

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Solution

The fourth proportional to 191,504.87, 287,322.01 and 84,874.25 is: 127,340.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,504.87 : 287,322.01 = 84,874.25 : x
  2. Step 2: Convert to fraction form
    191,504.87/287,322.01 = 84,874.25/x
  3. Step 3: Cross multiply
    191,504.87x = 287,322.01 × 84,874.25
  4. Step 4: Simplify right side
    191,504.87x = 24,386,238,458.45
  5. Step 5: Solve for x
    x = 24,386,238,458.45/191,504.87
  6. Step 6: Final answer
    x = 127,340.04

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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.