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Finding the Fourth Proportional to 445,585.23, 668,515.73 and 146,068.11

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Solution

The fourth proportional to 445,585.23, 668,515.73 and 146,068.11 is: 219,147.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,585.23 : 668,515.73 = 146,068.11 : x
  2. Step 2: Convert to fraction form
    445,585.23/668,515.73 = 146,068.11/x
  3. Step 3: Cross multiply
    445,585.23x = 668,515.73 × 146,068.11
  4. Step 4: Simplify right side
    445,585.23x = 97,648,828,456.03
  5. Step 5: Solve for x
    x = 97,648,828,456.03/445,585.23
  6. Step 6: Final answer
    x = 219,147.36

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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.