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Finding the Fourth Proportional to 445,866.36, 668,658.96 and 146,277.12

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Solution

The fourth proportional to 445,866.36, 668,658.96 and 146,277.12 is: 219,369.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,866.36 : 668,658.96 = 146,277.12 : x
  2. Step 2: Convert to fraction form
    445,866.36/668,658.96 = 146,277.12/x
  3. Step 3: Cross multiply
    445,866.36x = 668,658.96 × 146,277.12
  4. Step 4: Simplify right side
    445,866.36x = 97,809,506,931.00
  5. Step 5: Solve for x
    x = 97,809,506,931.00/445,866.36
  6. Step 6: Final answer
    x = 219,369.56

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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.