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Finding the Fourth Proportional to 125,410.64, 173,068.80 and 68,827.28

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Solution

The fourth proportional to 125,410.64, 173,068.80 and 68,827.28 is: 94,982.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,410.64 : 173,068.80 = 68,827.28 : x
  2. Step 2: Convert to fraction form
    125,410.64/173,068.80 = 68,827.28/x
  3. Step 3: Cross multiply
    125,410.64x = 173,068.80 × 68,827.28
  4. Step 4: Simplify right side
    125,410.64x = 11,911,854,756.86
  5. Step 5: Solve for x
    x = 11,911,854,756.86/125,410.64
  6. Step 6: Final answer
    x = 94,982.81

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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.