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Finding the Fourth Proportional to 157,603.65, 217,509.79 and 96,385.65

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Solution

The fourth proportional to 157,603.65, 217,509.79 and 96,385.65 is: 133,022.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,603.65 : 217,509.79 = 96,385.65 : x
  2. Step 2: Convert to fraction form
    157,603.65/217,509.79 = 96,385.65/x
  3. Step 3: Cross multiply
    157,603.65x = 217,509.79 × 96,385.65
  4. Step 4: Simplify right side
    157,603.65x = 20,964,822,249.55
  5. Step 5: Solve for x
    x = 20,964,822,249.55/157,603.65
  6. Step 6: Final answer
    x = 133,022.44

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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.