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Finding the Fourth Proportional to 235,956.64, 325,625.11 and 128,526.41

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Solution

The fourth proportional to 235,956.64, 325,625.11 and 128,526.41 is: 177,369.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,956.64 : 325,625.11 = 128,526.41 : x
  2. Step 2: Convert to fraction form
    235,956.64/325,625.11 = 128,526.41/x
  3. Step 3: Cross multiply
    235,956.64x = 325,625.11 × 128,526.41
  4. Step 4: Simplify right side
    235,956.64x = 41,851,426,394.16
  5. Step 5: Solve for x
    x = 41,851,426,394.16/235,956.64
  6. Step 6: Final answer
    x = 177,369.14

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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.