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Finding the Fourth Proportional to 127,657.58, 175,787.15 and 124,825.32

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Solution

The fourth proportional to 127,657.58, 175,787.15 and 124,825.32 is: 171,887.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,657.58 : 175,787.15 = 124,825.32 : x
  2. Step 2: Convert to fraction form
    127,657.58/175,787.15 = 124,825.32/x
  3. Step 3: Cross multiply
    127,657.58x = 175,787.15 × 124,825.32
  4. Step 4: Simplify right side
    127,657.58x = 21,942,686,626.51
  5. Step 5: Solve for x
    x = 21,942,686,626.51/127,657.58
  6. Step 6: Final answer
    x = 171,887.07

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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.