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Finding the Fourth Proportional to 123,159.99, 169,975.92 and 69,443.93

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Solution

The fourth proportional to 123,159.99, 169,975.92 and 69,443.93 is: 95,841.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,159.99 : 169,975.92 = 69,443.93 : x
  2. Step 2: Convert to fraction form
    123,159.99/169,975.92 = 69,443.93/x
  3. Step 3: Cross multiply
    123,159.99x = 169,975.92 × 69,443.93
  4. Step 4: Simplify right side
    123,159.99x = 11,803,796,184.90
  5. Step 5: Solve for x
    x = 11,803,796,184.90/123,159.99
  6. Step 6: Final answer
    x = 95,841.16

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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.