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Finding the Fourth Proportional to 123,575.68, 170,533.16 and 69,127.14

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Solution

The fourth proportional to 123,575.68, 170,533.16 and 69,127.14 is: 95,394.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,575.68 : 170,533.16 = 69,127.14 : x
  2. Step 2: Convert to fraction form
    123,575.68/170,533.16 = 69,127.14/x
  3. Step 3: Cross multiply
    123,575.68x = 170,533.16 × 69,127.14
  4. Step 4: Simplify right side
    123,575.68x = 11,788,470,179.05
  5. Step 5: Solve for x
    x = 11,788,470,179.05/123,575.68
  6. Step 6: Final answer
    x = 95,394.74

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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.