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Finding the Fourth Proportional to 191,584.20, 287,376.30 and 73,259.40

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Solution

The fourth proportional to 191,584.20, 287,376.30 and 73,259.40 is: 109,889.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,584.20 : 287,376.30 = 73,259.40 : x
  2. Step 2: Convert to fraction form
    191,584.20/287,376.30 = 73,259.40/x
  3. Step 3: Cross multiply
    191,584.20x = 287,376.30 × 73,259.40
  4. Step 4: Simplify right side
    191,584.20x = 21,053,015,312.22
  5. Step 5: Solve for x
    x = 21,053,015,312.22/191,584.20
  6. Step 6: Final answer
    x = 109,889.10

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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.