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Finding the Fourth Proportional to 116,368.78, 160,533.98 and 99,553.65

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Solution

The fourth proportional to 116,368.78, 160,533.98 and 99,553.65 is: 137,337.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,368.78 : 160,533.98 = 99,553.65 : x
  2. Step 2: Convert to fraction form
    116,368.78/160,533.98 = 99,553.65/x
  3. Step 3: Cross multiply
    116,368.78x = 160,533.98 × 99,553.65
  4. Step 4: Simplify right side
    116,368.78x = 15,981,743,658.03
  5. Step 5: Solve for x
    x = 15,981,743,658.03/116,368.78
  6. Step 6: Final answer
    x = 137,337.04

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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.