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Finding the Fourth Proportional to 91,173.42, 125,877.06 and 62,541.02

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Solution

The fourth proportional to 91,173.42, 125,877.06 and 62,541.02 is: 86,346.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,173.42 : 125,877.06 = 62,541.02 : x
  2. Step 2: Convert to fraction form
    91,173.42/125,877.06 = 62,541.02/x
  3. Step 3: Cross multiply
    91,173.42x = 125,877.06 × 62,541.02
  4. Step 4: Simplify right side
    91,173.42x = 7,872,479,097.62
  5. Step 5: Solve for x
    x = 7,872,479,097.62/91,173.42
  6. Step 6: Final answer
    x = 86,346.21

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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.