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Finding the Fourth Proportional to 125,797.71, 188,690.40 and 46,905.77

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Solution

The fourth proportional to 125,797.71, 188,690.40 and 46,905.77 is: 70,356.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,797.71 : 188,690.40 = 46,905.77 : x
  2. Step 2: Convert to fraction form
    125,797.71/188,690.40 = 46,905.77/x
  3. Step 3: Cross multiply
    125,797.71x = 188,690.40 × 46,905.77
  4. Step 4: Simplify right side
    125,797.71x = 8,850,668,503.61
  5. Step 5: Solve for x
    x = 8,850,668,503.61/125,797.71
  6. Step 6: Final answer
    x = 70,356.36

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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.