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Finding the Fourth Proportional to 245,712.56, 368,539.61 and 144,571.10

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Solution

The fourth proportional to 245,712.56, 368,539.61 and 144,571.10 is: 216,839.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,712.56 : 368,539.61 = 144,571.10 : x
  2. Step 2: Convert to fraction form
    245,712.56/368,539.61 = 144,571.10/x
  3. Step 3: Cross multiply
    245,712.56x = 368,539.61 × 144,571.10
  4. Step 4: Simplify right side
    245,712.56x = 53,280,174,245.72
  5. Step 5: Solve for x
    x = 53,280,174,245.72/245,712.56
  6. Step 6: Final answer
    x = 216,839.45

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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.