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Finding the Fourth Proportional to 84,276, 116,301.30 and 48,468.12

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Solution

The fourth proportional to 84,276, 116,301.30 and 48,468.12 is: 66,886.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,276 : 116,301.30 = 48,468.12 : x
  2. Step 2: Convert to fraction form
    84,276/116,301.30 = 48,468.12/x
  3. Step 3: Cross multiply
    84,276x = 116,301.30 × 48,468.12
  4. Step 4: Simplify right side
    84,276x = 5,636,905,364.56
  5. Step 5: Solve for x
    x = 5,636,905,364.56/84,276
  6. Step 6: Final answer
    x = 66,886.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.