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Finding the Fourth Proportional to 228,228.49, 314,949.63 and 126,259.62

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Solution

The fourth proportional to 228,228.49, 314,949.63 and 126,259.62 is: 174,235.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,228.49 : 314,949.63 = 126,259.62 : x
  2. Step 2: Convert to fraction form
    228,228.49/314,949.63 = 126,259.62/x
  3. Step 3: Cross multiply
    228,228.49x = 314,949.63 × 126,259.62
  4. Step 4: Simplify right side
    228,228.49x = 39,765,420,602.94
  5. Step 5: Solve for x
    x = 39,765,420,602.94/228,228.49
  6. Step 6: Final answer
    x = 174,235.13

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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.