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Finding the Fourth Proportional to 220,913.45, 304,858.64 and 134,854.32

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Solution

The fourth proportional to 220,913.45, 304,858.64 and 134,854.32 is: 186,097.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,913.45 : 304,858.64 = 134,854.32 : x
  2. Step 2: Convert to fraction form
    220,913.45/304,858.64 = 134,854.32/x
  3. Step 3: Cross multiply
    220,913.45x = 304,858.64 × 134,854.32
  4. Step 4: Simplify right side
    220,913.45x = 41,111,503,600.30
  5. Step 5: Solve for x
    x = 41,111,503,600.30/220,913.45
  6. Step 6: Final answer
    x = 186,097.78

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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.