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Finding the Fourth Proportional to 191,683.26, 287,388.81 and 73,254.78

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Solution

The fourth proportional to 191,683.26, 287,388.81 and 73,254.78 is: 109,830.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,683.26 : 287,388.81 = 73,254.78 : x
  2. Step 2: Convert to fraction form
    191,683.26/287,388.81 = 73,254.78/x
  3. Step 3: Cross multiply
    191,683.26x = 287,388.81 × 73,254.78
  4. Step 4: Simplify right side
    191,683.26x = 21,052,604,051.01
  5. Step 5: Solve for x
    x = 21,052,604,051.01/191,683.26
  6. Step 6: Final answer
    x = 109,830.16

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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.