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Finding the Fourth Proportional to 124,358.79, 171,637.52 and 73,368.58

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Solution

The fourth proportional to 124,358.79, 171,637.52 and 73,368.58 is: 101,261.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,358.79 : 171,637.52 = 73,368.58 : x
  2. Step 2: Convert to fraction form
    124,358.79/171,637.52 = 73,368.58/x
  3. Step 3: Cross multiply
    124,358.79x = 171,637.52 × 73,368.58
  4. Step 4: Simplify right side
    124,358.79x = 12,592,800,750.28
  5. Step 5: Solve for x
    x = 12,592,800,750.28/124,358.79
  6. Step 6: Final answer
    x = 101,261.85

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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.