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Finding the Fourth Proportional to 91,993.34, 126,946.76 and 53,756.48

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Solution

The fourth proportional to 91,993.34, 126,946.76 and 53,756.48 is: 74,181.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,993.34 : 126,946.76 = 53,756.48 : x
  2. Step 2: Convert to fraction form
    91,993.34/126,946.76 = 53,756.48/x
  3. Step 3: Cross multiply
    91,993.34x = 126,946.76 × 53,756.48
  4. Step 4: Simplify right side
    91,993.34x = 6,824,210,061.49
  5. Step 5: Solve for x
    x = 6,824,210,061.49/91,993.34
  6. Step 6: Final answer
    x = 74,181.57

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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.