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Finding the Fourth Proportional to 131,173.68, 195,737.43 and 117,036.53

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Solution

The fourth proportional to 131,173.68, 195,737.43 and 117,036.53 is: 174,641.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,173.68 : 195,737.43 = 117,036.53 : x
  2. Step 2: Convert to fraction form
    131,173.68/195,737.43 = 117,036.53/x
  3. Step 3: Cross multiply
    131,173.68x = 195,737.43 × 117,036.53
  4. Step 4: Simplify right side
    131,173.68x = 22,908,428,619.63
  5. Step 5: Solve for x
    x = 22,908,428,619.63/131,173.68
  6. Step 6: Final answer
    x = 174,641.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.