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Finding the Fourth Proportional to 65,364.86, 98,047.29 and 45,681.86

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Solution

The fourth proportional to 65,364.86, 98,047.29 and 45,681.86 is: 68,522.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,364.86 : 98,047.29 = 45,681.86 : x
  2. Step 2: Convert to fraction form
    65,364.86/98,047.29 = 45,681.86/x
  3. Step 3: Cross multiply
    65,364.86x = 98,047.29 × 45,681.86
  4. Step 4: Simplify right side
    65,364.86x = 4,478,982,084.92
  5. Step 5: Solve for x
    x = 4,478,982,084.92/65,364.86
  6. Step 6: Final answer
    x = 68,522.79

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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.