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Finding the Fourth Proportional to 91,954.86, 126,911.43 and 56,165.46

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Solution

The fourth proportional to 91,954.86, 126,911.43 and 56,165.46 is: 77,516.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,954.86 : 126,911.43 = 56,165.46 : x
  2. Step 2: Convert to fraction form
    91,954.86/126,911.43 = 56,165.46/x
  3. Step 3: Cross multiply
    91,954.86x = 126,911.43 × 56,165.46
  4. Step 4: Simplify right side
    91,954.86x = 7,128,038,845.21
  5. Step 5: Solve for x
    x = 7,128,038,845.21/91,954.86
  6. Step 6: Final answer
    x = 77,516.72

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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.