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Finding the Fourth Proportional to 281,363.96, 388,308.66 and 168,184.28

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Solution

The fourth proportional to 281,363.96, 388,308.66 and 168,184.28 is: 232,110.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,363.96 : 388,308.66 = 168,184.28 : x
  2. Step 2: Convert to fraction form
    281,363.96/388,308.66 = 168,184.28/x
  3. Step 3: Cross multiply
    281,363.96x = 388,308.66 × 168,184.28
  4. Step 4: Simplify right side
    281,363.96x = 65,307,412,399.86
  5. Step 5: Solve for x
    x = 65,307,412,399.86/281,363.96
  6. Step 6: Final answer
    x = 232,110.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.