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Finding the Fourth Proportional to 125,476.48, 173,182.08 and 77,751.04

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Solution

The fourth proportional to 125,476.48, 173,182.08 and 77,751.04 is: 107,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,476.48 : 173,182.08 = 77,751.04 : x
  2. Step 2: Convert to fraction form
    125,476.48/173,182.08 = 77,751.04/x
  3. Step 3: Cross multiply
    125,476.48x = 173,182.08 × 77,751.04
  4. Step 4: Simplify right side
    125,476.48x = 13,465,086,829.36
  5. Step 5: Solve for x
    x = 13,465,086,829.36/125,476.48
  6. Step 6: Final answer
    x = 107,311.64

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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.