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Finding the Fourth Proportional to 125,225.52, 187,911.99 and 46,394.70

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Solution

The fourth proportional to 125,225.52, 187,911.99 and 46,394.70 is: 69,619.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,225.52 : 187,911.99 = 46,394.70 : x
  2. Step 2: Convert to fraction form
    125,225.52/187,911.99 = 46,394.70/x
  3. Step 3: Cross multiply
    125,225.52x = 187,911.99 × 46,394.70
  4. Step 4: Simplify right side
    125,225.52x = 8,718,120,402.45
  5. Step 5: Solve for x
    x = 8,718,120,402.45/125,225.52
  6. Step 6: Final answer
    x = 69,619.36

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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.