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Finding the Fourth Proportional to 124,485.48, 171,789.14 and 70,770.51

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Solution

The fourth proportional to 124,485.48, 171,789.14 and 70,770.51 is: 97,662.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,485.48 : 171,789.14 = 70,770.51 : x
  2. Step 2: Convert to fraction form
    124,485.48/171,789.14 = 70,770.51/x
  3. Step 3: Cross multiply
    124,485.48x = 171,789.14 × 70,770.51
  4. Step 4: Simplify right side
    124,485.48x = 12,157,604,696.41
  5. Step 5: Solve for x
    x = 12,157,604,696.41/124,485.48
  6. Step 6: Final answer
    x = 97,662.83

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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.