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Finding the Fourth Proportional to 70,610.70, 105,293.00 and 60,812.94

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Solution

The fourth proportional to 70,610.70, 105,293.00 and 60,812.94 is: 90,682.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,610.70 : 105,293.00 = 60,812.94 : x
  2. Step 2: Convert to fraction form
    70,610.70/105,293.00 = 60,812.94/x
  3. Step 3: Cross multiply
    70,610.70x = 105,293.00 × 60,812.94
  4. Step 4: Simplify right side
    70,610.70x = 6,403,176,587.36
  5. Step 5: Solve for x
    x = 6,403,176,587.36/70,610.70
  6. Step 6: Final answer
    x = 90,682.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.