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Finding the Fourth Proportional to 123,263.52, 170,111.68 and 69,528.93

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Solution

The fourth proportional to 123,263.52, 170,111.68 and 69,528.93 is: 95,954.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,263.52 : 170,111.68 = 69,528.93 : x
  2. Step 2: Convert to fraction form
    123,263.52/170,111.68 = 69,528.93/x
  3. Step 3: Cross multiply
    123,263.52x = 170,111.68 × 69,528.93
  4. Step 4: Simplify right side
    123,263.52x = 11,827,682,279.16
  5. Step 5: Solve for x
    x = 11,827,682,279.16/123,263.52
  6. Step 6: Final answer
    x = 95,954.44

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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.