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Finding the Fourth Proportional to 116,907.90, 161,332.86 and 63,192.88

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Solution

The fourth proportional to 116,907.90, 161,332.86 and 63,192.88 is: 87,206.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,907.90 : 161,332.86 = 63,192.88 : x
  2. Step 2: Convert to fraction form
    116,907.90/161,332.86 = 63,192.88/x
  3. Step 3: Cross multiply
    116,907.90x = 161,332.86 × 63,192.88
  4. Step 4: Simplify right side
    116,907.90x = 10,195,088,062.04
  5. Step 5: Solve for x
    x = 10,195,088,062.04/116,907.90
  6. Step 6: Final answer
    x = 87,206.15

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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.