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Finding the Fourth Proportional to 136,479.16, 204,746.58 and 57,593.40

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Solution

The fourth proportional to 136,479.16, 204,746.58 and 57,593.40 is: 86,401.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,479.16 : 204,746.58 = 57,593.40 : x
  2. Step 2: Convert to fraction form
    136,479.16/204,746.58 = 57,593.40/x
  3. Step 3: Cross multiply
    136,479.16x = 204,746.58 × 57,593.40
  4. Step 4: Simplify right side
    136,479.16x = 11,792,051,680.57
  5. Step 5: Solve for x
    x = 11,792,051,680.57/136,479.16
  6. Step 6: Final answer
    x = 86,401.85

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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.