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Finding the Fourth Proportional to 114,379.12, 157,843.08 and 64,078.48

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Solution

The fourth proportional to 114,379.12, 157,843.08 and 64,078.48 is: 88,428.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,379.12 : 157,843.08 = 64,078.48 : x
  2. Step 2: Convert to fraction form
    114,379.12/157,843.08 = 64,078.48/x
  3. Step 3: Cross multiply
    114,379.12x = 157,843.08 × 64,078.48
  4. Step 4: Simplify right side
    114,379.12x = 10,114,344,644.92
  5. Step 5: Solve for x
    x = 10,114,344,644.92/114,379.12
  6. Step 6: Final answer
    x = 88,428.24

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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.