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Finding the Fourth Proportional to 153,328.52, 229,880.52 and 72,247.93

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Solution

The fourth proportional to 153,328.52, 229,880.52 and 72,247.93 is: 108,318.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,328.52 : 229,880.52 = 72,247.93 : x
  2. Step 2: Convert to fraction form
    153,328.52/229,880.52 = 72,247.93/x
  3. Step 3: Cross multiply
    153,328.52x = 229,880.52 × 72,247.93
  4. Step 4: Simplify right side
    153,328.52x = 16,608,391,142.62
  5. Step 5: Solve for x
    x = 16,608,391,142.62/153,328.52
  6. Step 6: Final answer
    x = 108,318.99

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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.