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Finding the Fourth Proportional to 357,929.30, 536,881.57 and 91,692.43

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Solution

The fourth proportional to 357,929.30, 536,881.57 and 91,692.43 is: 137,535.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,929.30 : 536,881.57 = 91,692.43 : x
  2. Step 2: Convert to fraction form
    357,929.30/536,881.57 = 91,692.43/x
  3. Step 3: Cross multiply
    357,929.30x = 536,881.57 × 91,692.43
  4. Step 4: Simplify right side
    357,929.30x = 49,227,975,775.52
  5. Step 5: Solve for x
    x = 49,227,975,775.52/357,929.30
  6. Step 6: Final answer
    x = 137,535.47

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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.