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Finding the Fourth Proportional to 125,999.28, 173,878.93 and 69,410.66

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Solution

The fourth proportional to 125,999.28, 173,878.93 and 69,410.66 is: 95,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,999.28 : 173,878.93 = 69,410.66 : x
  2. Step 2: Convert to fraction form
    125,999.28/173,878.93 = 69,410.66/x
  3. Step 3: Cross multiply
    125,999.28x = 173,878.93 × 69,410.66
  4. Step 4: Simplify right side
    125,999.28x = 12,069,050,508.76
  5. Step 5: Solve for x
    x = 12,069,050,508.76/125,999.28
  6. Step 6: Final answer
    x = 95,786.66

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1.5x scale

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.