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Finding the Fourth Proportional to 93,920.88, 129,609.41 and 51,479.49

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Solution

The fourth proportional to 93,920.88, 129,609.41 and 51,479.49 is: 71,040.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,920.88 : 129,609.41 = 51,479.49 : x
  2. Step 2: Convert to fraction form
    93,920.88/129,609.41 = 51,479.49/x
  3. Step 3: Cross multiply
    93,920.88x = 129,609.41 × 51,479.49
  4. Step 4: Simplify right side
    93,920.88x = 6,672,226,068.60
  5. Step 5: Solve for x
    x = 6,672,226,068.60/93,920.88
  6. Step 6: Final answer
    x = 71,040.92

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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.