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Finding the Fourth Proportional to 357,462.79, 536,193.79 and 91,223.30

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Solution

The fourth proportional to 357,462.79, 536,193.79 and 91,223.30 is: 136,834.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,462.79 : 536,193.79 = 91,223.30 : x
  2. Step 2: Convert to fraction form
    357,462.79/536,193.79 = 91,223.30/x
  3. Step 3: Cross multiply
    357,462.79x = 536,193.79 × 91,223.30
  4. Step 4: Simplify right side
    357,462.79x = 48,913,366,963.31
  5. Step 5: Solve for x
    x = 48,913,366,963.31/357,462.79
  6. Step 6: Final answer
    x = 136,834.85

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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.