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Finding the Fourth Proportional to 84,699.94, 127,023.90 and 58,572.58

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Solution

The fourth proportional to 84,699.94, 127,023.90 and 58,572.58 is: 87,840.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,699.94 : 127,023.90 = 58,572.58 : x
  2. Step 2: Convert to fraction form
    84,699.94/127,023.90 = 58,572.58/x
  3. Step 3: Cross multiply
    84,699.94x = 127,023.90 × 58,572.58
  4. Step 4: Simplify right side
    84,699.94x = 7,440,117,544.66
  5. Step 5: Solve for x
    x = 7,440,117,544.66/84,699.94
  6. Step 6: Final answer
    x = 87,840.88

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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.