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Finding the Fourth Proportional to 527,396.76, 791,100.09 and 128,041.04

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Solution

The fourth proportional to 527,396.76, 791,100.09 and 128,041.04 is: 192,062.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,396.76 : 791,100.09 = 128,041.04 : x
  2. Step 2: Convert to fraction form
    527,396.76/791,100.09 = 128,041.04/x
  3. Step 3: Cross multiply
    527,396.76x = 791,100.09 × 128,041.04
  4. Step 4: Simplify right side
    527,396.76x = 101,293,274,312.19
  5. Step 5: Solve for x
    x = 101,293,274,312.19/527,396.76
  6. Step 6: Final answer
    x = 192,062.75

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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.