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Finding the Fourth Proportional to 98,794.84, 136,336.87 and 53,472.81

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Solution

The fourth proportional to 98,794.84, 136,336.87 and 53,472.81 is: 73,792.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,794.84 : 136,336.87 = 53,472.81 : x
  2. Step 2: Convert to fraction form
    98,794.84/136,336.87 = 53,472.81/x
  3. Step 3: Cross multiply
    98,794.84x = 136,336.87 × 53,472.81
  4. Step 4: Simplify right side
    98,794.84x = 7,290,315,411.82
  5. Step 5: Solve for x
    x = 7,290,315,411.82/98,794.84
  6. Step 6: Final answer
    x = 73,792.47

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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.