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Finding the Fourth Proportional to 125,384.40, 188,076.60 and 46,490.40

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Solution

The fourth proportional to 125,384.40, 188,076.60 and 46,490.40 is: 69,735.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,384.40 : 188,076.60 = 46,490.40 : x
  2. Step 2: Convert to fraction form
    125,384.40/188,076.60 = 46,490.40/x
  3. Step 3: Cross multiply
    125,384.40x = 188,076.60 × 46,490.40
  4. Step 4: Simplify right side
    125,384.40x = 8,743,756,364.64
  5. Step 5: Solve for x
    x = 8,743,756,364.64/125,384.40
  6. Step 6: Final answer
    x = 69,735.60

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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.