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Finding the Fourth Proportional to 67,208.67, 92,742.57 and 38,916.18

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Solution

The fourth proportional to 67,208.67, 92,742.57 and 38,916.18 is: 53,701.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,208.67 : 92,742.57 = 38,916.18 : x
  2. Step 2: Convert to fraction form
    67,208.67/92,742.57 = 38,916.18/x
  3. Step 3: Cross multiply
    67,208.67x = 92,742.57 × 38,916.18
  4. Step 4: Simplify right side
    67,208.67x = 3,609,186,547.78
  5. Step 5: Solve for x
    x = 3,609,186,547.78/67,208.67
  6. Step 6: Final answer
    x = 53,701.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.