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Finding the Fourth Proportional to 115,506.16, 173,264.16 and 36,618.64

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Solution

The fourth proportional to 115,506.16, 173,264.16 and 36,618.64 is: 54,929.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,506.16 : 173,264.16 = 36,618.64 : x
  2. Step 2: Convert to fraction form
    115,506.16/173,264.16 = 36,618.64/x
  3. Step 3: Cross multiply
    115,506.16x = 173,264.16 × 36,618.64
  4. Step 4: Simplify right side
    115,506.16x = 6,344,697,899.94
  5. Step 5: Solve for x
    x = 6,344,697,899.94/115,506.16
  6. Step 6: Final answer
    x = 54,929.52

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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.