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Finding the Fourth Proportional to 115,636.32, 173,477.88 and 65,740.32

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Solution

The fourth proportional to 115,636.32, 173,477.88 and 65,740.32 is: 98,623.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,636.32 : 173,477.88 = 65,740.32 : x
  2. Step 2: Convert to fraction form
    115,636.32/173,477.88 = 65,740.32/x
  3. Step 3: Cross multiply
    115,636.32x = 173,477.88 × 65,740.32
  4. Step 4: Simplify right side
    115,636.32x = 11,404,491,344.12
  5. Step 5: Solve for x
    x = 11,404,491,344.12/115,636.32
  6. Step 6: Final answer
    x = 98,623.78

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1.5x scale

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.