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Finding the Fourth Proportional to 125,805.17, 188,701.65 and 46,913.27

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Solution

The fourth proportional to 125,805.17, 188,701.65 and 46,913.27 is: 70,367.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,805.17 : 188,701.65 = 46,913.27 : x
  2. Step 2: Convert to fraction form
    125,805.17/188,701.65 = 46,913.27/x
  3. Step 3: Cross multiply
    125,805.17x = 188,701.65 × 46,913.27
  4. Step 4: Simplify right side
    125,805.17x = 8,852,610,512.39
  5. Step 5: Solve for x
    x = 8,852,610,512.39/125,805.17
  6. Step 6: Final answer
    x = 70,367.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.