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Finding the Fourth Proportional to 93,920.46, 129,623.52 and 58,122.00

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Solution

The fourth proportional to 93,920.46, 129,623.52 and 58,122.00 is: 80,216.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,920.46 : 129,623.52 = 58,122.00 : x
  2. Step 2: Convert to fraction form
    93,920.46/129,623.52 = 58,122.00/x
  3. Step 3: Cross multiply
    93,920.46x = 129,623.52 × 58,122.00
  4. Step 4: Simplify right side
    93,920.46x = 7,533,977,290.71
  5. Step 5: Solve for x
    x = 7,533,977,290.71/93,920.46
  6. Step 6: Final answer
    x = 80,216.58

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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.