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Finding the Fourth Proportional to 125,669.48, 173,419.48 and 69,080.45

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Solution

The fourth proportional to 125,669.48, 173,419.48 and 69,080.45 is: 95,328.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,669.48 : 173,419.48 = 69,080.45 : x
  2. Step 2: Convert to fraction form
    125,669.48/173,419.48 = 69,080.45/x
  3. Step 3: Cross multiply
    125,669.48x = 173,419.48 × 69,080.45
  4. Step 4: Simplify right side
    125,669.48x = 11,979,895,717.17
  5. Step 5: Solve for x
    x = 11,979,895,717.17/125,669.48
  6. Step 6: Final answer
    x = 95,328.60

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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.