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Finding the Fourth Proportional to 116,235.52, 160,403.52 and 68,490.88

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Solution

The fourth proportional to 116,235.52, 160,403.52 and 68,490.88 is: 94,516.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,235.52 : 160,403.52 = 68,490.88 : x
  2. Step 2: Convert to fraction form
    116,235.52/160,403.52 = 68,490.88/x
  3. Step 3: Cross multiply
    116,235.52x = 160,403.52 × 68,490.88
  4. Step 4: Simplify right side
    116,235.52x = 10,986,178,239.90
  5. Step 5: Solve for x
    x = 10,986,178,239.90/116,235.52
  6. Step 6: Final answer
    x = 94,516.53

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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.