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Finding the Fourth Proportional to 141,347, 195,056.66 and 77,683.43

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Solution

The fourth proportional to 141,347, 195,056.66 and 77,683.43 is: 107,201.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,347 : 195,056.66 = 77,683.43 : x
  2. Step 2: Convert to fraction form
    141,347/195,056.66 = 77,683.43/x
  3. Step 3: Cross multiply
    141,347x = 195,056.66 × 77,683.43
  4. Step 4: Simplify right side
    141,347x = 15,152,670,393.14
  5. Step 5: Solve for x
    x = 15,152,670,393.14/141,347
  6. Step 6: Final answer
    x = 107,201.92

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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.