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Finding the Fourth Proportional to 127,671, 191,506.36 and 57,468.28

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Solution

The fourth proportional to 127,671, 191,506.36 and 57,468.28 is: 86,202.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,671 : 191,506.36 = 57,468.28 : x
  2. Step 2: Convert to fraction form
    127,671/191,506.36 = 57,468.28/x
  3. Step 3: Cross multiply
    127,671x = 191,506.36 × 57,468.28
  4. Step 4: Simplify right side
    127,671x = 11,005,541,118.26
  5. Step 5: Solve for x
    x = 11,005,541,118.26/127,671
  6. Step 6: Final answer
    x = 86,202.36

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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.