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Finding the Fourth Proportional to 99,285.53, 137,014.95 and 53,963.62

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Solution

The fourth proportional to 99,285.53, 137,014.95 and 53,963.62 is: 74,470.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,285.53 : 137,014.95 = 53,963.62 : x
  2. Step 2: Convert to fraction form
    99,285.53/137,014.95 = 53,963.62/x
  3. Step 3: Cross multiply
    99,285.53x = 137,014.95 × 53,963.62
  4. Step 4: Simplify right side
    99,285.53x = 7,393,822,353.58
  5. Step 5: Solve for x
    x = 7,393,822,353.58/99,285.53
  6. Step 6: Final answer
    x = 74,470.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.