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Finding the Fourth Proportional to 141,004, 194,585.52 and 81,388

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Solution

The fourth proportional to 141,004, 194,585.52 and 81,388 is: 112,315.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,004 : 194,585.52 = 81,388 : x
  2. Step 2: Convert to fraction form
    141,004/194,585.52 = 81,388/x
  3. Step 3: Cross multiply
    141,004x = 194,585.52 × 81,388
  4. Step 4: Simplify right side
    141,004x = 15,836,926,301.76
  5. Step 5: Solve for x
    x = 15,836,926,301.76/141,004
  6. Step 6: Final answer
    x = 112,315.44

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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.