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Finding the Fourth Proportional to 93,849.71, 129,511.31 and 51,408.54

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Solution

The fourth proportional to 93,849.71, 129,511.31 and 51,408.54 is: 70,943.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,849.71 : 129,511.31 = 51,408.54 : x
  2. Step 2: Convert to fraction form
    93,849.71/129,511.31 = 51,408.54/x
  3. Step 3: Cross multiply
    93,849.71x = 129,511.31 × 51,408.54
  4. Step 4: Simplify right side
    93,849.71x = 6,657,987,103.54
  5. Step 5: Solve for x
    x = 6,657,987,103.54/93,849.71
  6. Step 6: Final answer
    x = 70,943.08

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1.5x scale

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.