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Finding the Fourth Proportional to 91,853.93, 137,652.60 and 49,643.03

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Solution

The fourth proportional to 91,853.93, 137,652.60 and 49,643.03 is: 74,395.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,853.93 : 137,652.60 = 49,643.03 : x
  2. Step 2: Convert to fraction form
    91,853.93/137,652.60 = 49,643.03/x
  3. Step 3: Cross multiply
    91,853.93x = 137,652.60 × 49,643.03
  4. Step 4: Simplify right side
    91,853.93x = 6,833,492,151.38
  5. Step 5: Solve for x
    x = 6,833,492,151.38/91,853.93
  6. Step 6: Final answer
    x = 74,395.21

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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.