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Finding the Fourth Proportional to 163,712, 225,922.56 and 93,056

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Solution

The fourth proportional to 163,712, 225,922.56 and 93,056 is: 128,417.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,712 : 225,922.56 = 93,056 : x
  2. Step 2: Convert to fraction form
    163,712/225,922.56 = 93,056/x
  3. Step 3: Cross multiply
    163,712x = 225,922.56 × 93,056
  4. Step 4: Simplify right side
    163,712x = 21,023,449,743.36
  5. Step 5: Solve for x
    x = 21,023,449,743.36/163,712
  6. Step 6: Final answer
    x = 128,417.28

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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.