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Finding the Fourth Proportional to 245,048.90, 367,087.35 and 215,824.10

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Solution

The fourth proportional to 245,048.90, 367,087.35 and 215,824.10 is: 323,308.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,048.90 : 367,087.35 = 215,824.10 : x
  2. Step 2: Convert to fraction form
    245,048.90/367,087.35 = 215,824.10/x
  3. Step 3: Cross multiply
    245,048.90x = 367,087.35 × 215,824.10
  4. Step 4: Simplify right side
    245,048.90x = 79,226,296,935.14
  5. Step 5: Solve for x
    x = 79,226,296,935.14/245,048.90
  6. Step 6: Final answer
    x = 323,308.11

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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.