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Finding the Fourth Proportional to 124,645.34, 186,968.31 and 49,771.58

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Solution

The fourth proportional to 124,645.34, 186,968.31 and 49,771.58 is: 74,657.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,645.34 : 186,968.31 = 49,771.58 : x
  2. Step 2: Convert to fraction form
    124,645.34/186,968.31 = 49,771.58/x
  3. Step 3: Cross multiply
    124,645.34x = 186,968.31 × 49,771.58
  4. Step 4: Simplify right side
    124,645.34x = 9,305,707,263.79
  5. Step 5: Solve for x
    x = 9,305,707,263.79/124,645.34
  6. Step 6: Final answer
    x = 74,657.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.