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Finding the Fourth Proportional to 93,139.62, 128,532.84 and 50,698.04

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Solution

The fourth proportional to 93,139.62, 128,532.84 and 50,698.04 is: 69,963.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,139.62 : 128,532.84 = 50,698.04 : x
  2. Step 2: Convert to fraction form
    93,139.62/128,532.84 = 50,698.04/x
  3. Step 3: Cross multiply
    93,139.62x = 128,532.84 × 50,698.04
  4. Step 4: Simplify right side
    93,139.62x = 6,516,363,063.63
  5. Step 5: Solve for x
    x = 6,516,363,063.63/93,139.62
  6. Step 6: Final answer
    x = 69,963.38

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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.