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Finding the Fourth Proportional to 124,390.58, 171,658.60 and 70,673

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Solution

The fourth proportional to 124,390.58, 171,658.60 and 70,673 is: 97,528.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,390.58 : 171,658.60 = 70,673 : x
  2. Step 2: Convert to fraction form
    124,390.58/171,658.60 = 70,673/x
  3. Step 3: Cross multiply
    124,390.58x = 171,658.60 × 70,673
  4. Step 4: Simplify right side
    124,390.58x = 12,131,628,237.80
  5. Step 5: Solve for x
    x = 12,131,628,237.80/124,390.58
  6. Step 6: Final answer
    x = 97,528.51

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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.