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Finding the Fourth Proportional to 123,537.42, 170,480.42 and 69,088.98

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Solution

The fourth proportional to 123,537.42, 170,480.42 and 69,088.98 is: 95,342.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,537.42 : 170,480.42 = 69,088.98 : x
  2. Step 2: Convert to fraction form
    123,537.42/170,480.42 = 69,088.98/x
  3. Step 3: Cross multiply
    123,537.42x = 170,480.42 × 69,088.98
  4. Step 4: Simplify right side
    123,537.42x = 11,778,317,636.60
  5. Step 5: Solve for x
    x = 11,778,317,636.60/123,537.42
  6. Step 6: Final answer
    x = 95,342.11

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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.