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Finding the Fourth Proportional to 199,411.20, 299,116.80 and 116,467.20

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Solution

The fourth proportional to 199,411.20, 299,116.80 and 116,467.20 is: 174,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,411.20 : 299,116.80 = 116,467.20 : x
  2. Step 2: Convert to fraction form
    199,411.20/299,116.80 = 116,467.20/x
  3. Step 3: Cross multiply
    199,411.20x = 299,116.80 × 116,467.20
  4. Step 4: Simplify right side
    199,411.20x = 34,837,296,168.96
  5. Step 5: Solve for x
    x = 34,837,296,168.96/199,411.20
  6. Step 6: Final answer
    x = 174,700.80

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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.