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Finding the Fourth Proportional to 183,778.64, 253,642.28 and 112,200.40

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Solution

The fourth proportional to 183,778.64, 253,642.28 and 112,200.40 is: 154,853.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,778.64 : 253,642.28 = 112,200.40 : x
  2. Step 2: Convert to fraction form
    183,778.64/253,642.28 = 112,200.40/x
  3. Step 3: Cross multiply
    183,778.64x = 253,642.28 × 112,200.40
  4. Step 4: Simplify right side
    183,778.64x = 28,458,765,272.91
  5. Step 5: Solve for x
    x = 28,458,765,272.91/183,778.64
  6. Step 6: Final answer
    x = 154,853.50

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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.