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Finding the Fourth Proportional to 99,425.34, 137,202.93 and 56,954.34

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Solution

The fourth proportional to 99,425.34, 137,202.93 and 56,954.34 is: 78,594.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,425.34 : 137,202.93 = 56,954.34 : x
  2. Step 2: Convert to fraction form
    99,425.34/137,202.93 = 56,954.34/x
  3. Step 3: Cross multiply
    99,425.34x = 137,202.93 × 56,954.34
  4. Step 4: Simplify right side
    99,425.34x = 7,814,302,324.22
  5. Step 5: Solve for x
    x = 7,814,302,324.22/99,425.34
  6. Step 6: Final answer
    x = 78,594.68

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1.5x scale

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.