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Finding the Fourth Proportional to 125,616.40, 188,424.60 and 46,714.30

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Solution

The fourth proportional to 125,616.40, 188,424.60 and 46,714.30 is: 70,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,616.40 : 188,424.60 = 46,714.30 : x
  2. Step 2: Convert to fraction form
    125,616.40/188,424.60 = 46,714.30/x
  3. Step 3: Cross multiply
    125,616.40x = 188,424.60 × 46,714.30
  4. Step 4: Simplify right side
    125,616.40x = 8,802,123,291.78
  5. Step 5: Solve for x
    x = 8,802,123,291.78/125,616.40
  6. Step 6: Final answer
    x = 70,071.45

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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.