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Finding the Fourth Proportional to 236,114.64, 325,838.28 and 128,684.76

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Solution

The fourth proportional to 236,114.64, 325,838.28 and 128,684.76 is: 177,585.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,114.64 : 325,838.28 = 128,684.76 : x
  2. Step 2: Convert to fraction form
    236,114.64/325,838.28 = 128,684.76/x
  3. Step 3: Cross multiply
    236,114.64x = 325,838.28 × 128,684.76
  4. Step 4: Simplify right side
    236,114.64x = 41,930,420,860.61
  5. Step 5: Solve for x
    x = 41,930,420,860.61/236,114.64
  6. Step 6: Final answer
    x = 177,585.01

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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.