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Finding the Fourth Proportional to 123,646.65, 170,632.58 and 67,058.07

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Solution

The fourth proportional to 123,646.65, 170,632.58 and 67,058.07 is: 92,540.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,646.65 : 170,632.58 = 67,058.07 : x
  2. Step 2: Convert to fraction form
    123,646.65/170,632.58 = 67,058.07/x
  3. Step 3: Cross multiply
    123,646.65x = 170,632.58 × 67,058.07
  4. Step 4: Simplify right side
    123,646.65x = 11,442,291,158.63
  5. Step 5: Solve for x
    x = 11,442,291,158.63/123,646.65
  6. Step 6: Final answer
    x = 92,540.24

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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.