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Finding the Fourth Proportional to 71,594.90, 107,384.12 and 19,008.50

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Solution

The fourth proportional to 71,594.90, 107,384.12 and 19,008.50 is: 28,510.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,594.90 : 107,384.12 = 19,008.50 : x
  2. Step 2: Convert to fraction form
    71,594.90/107,384.12 = 19,008.50/x
  3. Step 3: Cross multiply
    71,594.90x = 107,384.12 × 19,008.50
  4. Step 4: Simplify right side
    71,594.90x = 2,041,211,045.02
  5. Step 5: Solve for x
    x = 2,041,211,045.02/71,594.90
  6. Step 6: Final answer
    x = 28,510.56

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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.