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Finding the Fourth Proportional to 245,643.90, 368,466.03 and 68,151.08

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Solution

The fourth proportional to 245,643.90, 368,466.03 and 68,151.08 is: 102,226.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,643.90 : 368,466.03 = 68,151.08 : x
  2. Step 2: Convert to fraction form
    245,643.90/368,466.03 = 68,151.08/x
  3. Step 3: Cross multiply
    245,643.90x = 368,466.03 × 68,151.08
  4. Step 4: Simplify right side
    245,643.90x = 25,111,356,045.48
  5. Step 5: Solve for x
    x = 25,111,356,045.48/245,643.90
  6. Step 6: Final answer
    x = 102,226.66

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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.