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Finding the Fourth Proportional to 191,889.20, 287,855.40 and 58,768.40

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Solution

The fourth proportional to 191,889.20, 287,855.40 and 58,768.40 is: 88,159.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,889.20 : 287,855.40 = 58,768.40 : x
  2. Step 2: Convert to fraction form
    191,889.20/287,855.40 = 58,768.40/x
  3. Step 3: Cross multiply
    191,889.20x = 287,855.40 × 58,768.40
  4. Step 4: Simplify right side
    191,889.20x = 16,916,801,289.36
  5. Step 5: Solve for x
    x = 16,916,801,289.36/191,889.20
  6. Step 6: Final answer
    x = 88,159.22

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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.