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Finding the Fourth Proportional to 125,788.88, 173,660.32 and 83,404.72

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Solution

The fourth proportional to 125,788.88, 173,660.32 and 83,404.72 is: 115,146.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,788.88 : 173,660.32 = 83,404.72 : x
  2. Step 2: Convert to fraction form
    125,788.88/173,660.32 = 83,404.72/x
  3. Step 3: Cross multiply
    125,788.88x = 173,660.32 × 83,404.72
  4. Step 4: Simplify right side
    125,788.88x = 14,484,090,364.71
  5. Step 5: Solve for x
    x = 14,484,090,364.71/125,788.88
  6. Step 6: Final answer
    x = 115,146.03

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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.