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Finding the Fourth Proportional to 365,411.25, 548,167.45 and 112,711.60

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Solution

The fourth proportional to 365,411.25, 548,167.45 and 112,711.60 is: 169,083.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,411.25 : 548,167.45 = 112,711.60 : x
  2. Step 2: Convert to fraction form
    365,411.25/548,167.45 = 112,711.60/x
  3. Step 3: Cross multiply
    365,411.25x = 548,167.45 × 112,711.60
  4. Step 4: Simplify right side
    365,411.25x = 61,784,830,972.18
  5. Step 5: Solve for x
    x = 61,784,830,972.18/365,411.25
  6. Step 6: Final answer
    x = 169,083.00

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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.