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Finding the Fourth Proportional to 93,315.70, 140,039.16 and 84,392.74

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Solution

The fourth proportional to 93,315.70, 140,039.16 and 84,392.74 is: 126,648.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,315.70 : 140,039.16 = 84,392.74 : x
  2. Step 2: Convert to fraction form
    93,315.70/140,039.16 = 84,392.74/x
  3. Step 3: Cross multiply
    93,315.70x = 140,039.16 × 84,392.74
  4. Step 4: Simplify right side
    93,315.70x = 11,818,288,419.70
  5. Step 5: Solve for x
    x = 11,818,288,419.70/93,315.70
  6. Step 6: Final answer
    x = 126,648.45

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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.