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Finding the Fourth Proportional to 108,294.84, 149,386.85 and 62,967.81

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Solution

The fourth proportional to 108,294.84, 149,386.85 and 62,967.81 is: 86,860.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,294.84 : 149,386.85 = 62,967.81 : x
  2. Step 2: Convert to fraction form
    108,294.84/149,386.85 = 62,967.81/x
  3. Step 3: Cross multiply
    108,294.84x = 149,386.85 × 62,967.81
  4. Step 4: Simplify right side
    108,294.84x = 9,406,563,268.79
  5. Step 5: Solve for x
    x = 9,406,563,268.79/108,294.84
  6. Step 6: Final answer
    x = 86,860.68

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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.