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Finding the Fourth Proportional to 94,773.40, 142,313.70 and 68,661.40

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Solution

The fourth proportional to 94,773.40, 142,313.70 and 68,661.40 is: 103,103.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,773.40 : 142,313.70 = 68,661.40 : x
  2. Step 2: Convert to fraction form
    94,773.40/142,313.70 = 68,661.40/x
  3. Step 3: Cross multiply
    94,773.40x = 142,313.70 × 68,661.40
  4. Step 4: Simplify right side
    94,773.40x = 9,771,457,881.18
  5. Step 5: Solve for x
    x = 9,771,457,881.18/94,773.40
  6. Step 6: Final answer
    x = 103,103.38

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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.