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Finding the Fourth Proportional to 125,511.40, 188,267.10 and 46,617.40

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Solution

The fourth proportional to 125,511.40, 188,267.10 and 46,617.40 is: 69,926.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,511.40 : 188,267.10 = 46,617.40 : x
  2. Step 2: Convert to fraction form
    125,511.40/188,267.10 = 46,617.40/x
  3. Step 3: Cross multiply
    125,511.40x = 188,267.10 × 46,617.40
  4. Step 4: Simplify right side
    125,511.40x = 8,776,522,707.54
  5. Step 5: Solve for x
    x = 8,776,522,707.54/125,511.40
  6. Step 6: Final answer
    x = 69,926.10

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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.