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Finding the Fourth Proportional to 124,564.52, 171,904.20 and 70,859

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Solution

The fourth proportional to 124,564.52, 171,904.20 and 70,859 is: 97,788.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,564.52 : 171,904.20 = 70,859 : x
  2. Step 2: Convert to fraction form
    124,564.52/171,904.20 = 70,859/x
  3. Step 3: Cross multiply
    124,564.52x = 171,904.20 × 70,859
  4. Step 4: Simplify right side
    124,564.52x = 12,180,959,707.80
  5. Step 5: Solve for x
    x = 12,180,959,707.80/124,564.52
  6. Step 6: Final answer
    x = 97,788.36

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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.