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Finding the Fourth Proportional to 445,762.73, 668,746.08 and 193,085.28

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Solution

The fourth proportional to 445,762.73, 668,746.08 and 193,085.28 is: 289,672.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,762.73 : 668,746.08 = 193,085.28 : x
  2. Step 2: Convert to fraction form
    445,762.73/668,746.08 = 193,085.28/x
  3. Step 3: Cross multiply
    445,762.73x = 668,746.08 × 193,085.28
  4. Step 4: Simplify right side
    445,762.73x = 129,125,024,105.70
  5. Step 5: Solve for x
    x = 129,125,024,105.70/445,762.73
  6. Step 6: Final answer
    x = 289,672.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.