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Finding the Fourth Proportional to 527,881.95, 791,824.44 and 128,522.39

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Solution

The fourth proportional to 527,881.95, 791,824.44 and 128,522.39 is: 192,783.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,881.95 : 791,824.44 = 128,522.39 : x
  2. Step 2: Convert to fraction form
    527,881.95/791,824.44 = 128,522.39/x
  3. Step 3: Cross multiply
    527,881.95x = 791,824.44 × 128,522.39
  4. Step 4: Simplify right side
    527,881.95x = 101,767,165,530.09
  5. Step 5: Solve for x
    x = 101,767,165,530.09/527,881.95
  6. Step 6: Final answer
    x = 192,783.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.