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Finding the Fourth Proportional to 98,773.75, 136,308.74 and 54,062.71

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Solution

The fourth proportional to 98,773.75, 136,308.74 and 54,062.71 is: 74,607.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,773.75 : 136,308.74 = 54,062.71 : x
  2. Step 2: Convert to fraction form
    98,773.75/136,308.74 = 54,062.71/x
  3. Step 3: Cross multiply
    98,773.75x = 136,308.74 × 54,062.71
  4. Step 4: Simplify right side
    98,773.75x = 7,369,219,881.09
  5. Step 5: Solve for x
    x = 7,369,219,881.09/98,773.75
  6. Step 6: Final answer
    x = 74,607.07

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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.