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Finding the Fourth Proportional to 191,518.83, 287,267.44 and 84,872.07

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Solution

The fourth proportional to 191,518.83, 287,267.44 and 84,872.07 is: 127,303.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,518.83 : 287,267.44 = 84,872.07 : x
  2. Step 2: Convert to fraction form
    191,518.83/287,267.44 = 84,872.07/x
  3. Step 3: Cross multiply
    191,518.83x = 287,267.44 × 84,872.07
  4. Step 4: Simplify right side
    191,518.83x = 24,380,982,276.40
  5. Step 5: Solve for x
    x = 24,380,982,276.40/191,518.83
  6. Step 6: Final answer
    x = 127,303.32

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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.