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Finding the Fourth Proportional to 97,521.60, 145,958.40 and 70,791.60

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Solution

The fourth proportional to 97,521.60, 145,958.40 and 70,791.60 is: 105,952.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,521.60 : 145,958.40 = 70,791.60 : x
  2. Step 2: Convert to fraction form
    97,521.60/145,958.40 = 70,791.60/x
  3. Step 3: Cross multiply
    97,521.60x = 145,958.40 × 70,791.60
  4. Step 4: Simplify right side
    97,521.60x = 10,332,628,669.44
  5. Step 5: Solve for x
    x = 10,332,628,669.44/97,521.60
  6. Step 6: Final answer
    x = 105,952.21

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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.