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Finding the Fourth Proportional to 91,885.84, 126,816.17 and 56,096.60

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Solution

The fourth proportional to 91,885.84, 126,816.17 and 56,096.60 is: 77,421.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,885.84 : 126,816.17 = 56,096.60 : x
  2. Step 2: Convert to fraction form
    91,885.84/126,816.17 = 56,096.60/x
  3. Step 3: Cross multiply
    91,885.84x = 126,816.17 × 56,096.60
  4. Step 4: Simplify right side
    91,885.84x = 7,113,955,785.22
  5. Step 5: Solve for x
    x = 7,113,955,785.22/91,885.84
  6. Step 6: Final answer
    x = 77,421.68

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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.