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Finding the Fourth Proportional to 191,626.16, 287,473.86 and 79,245.34

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Solution

The fourth proportional to 191,626.16, 287,473.86 and 79,245.34 is: 118,882.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,626.16 : 287,473.86 = 79,245.34 : x
  2. Step 2: Convert to fraction form
    191,626.16/287,473.86 = 79,245.34/x
  3. Step 3: Cross multiply
    191,626.16x = 287,473.86 × 79,245.34
  4. Step 4: Simplify right side
    191,626.16x = 22,780,963,058.13
  5. Step 5: Solve for x
    x = 22,780,963,058.13/191,626.16
  6. Step 6: Final answer
    x = 118,882.33

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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.