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Finding the Fourth Proportional to 210,320.54, 315,483.54 and 60,563.28

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Solution

The fourth proportional to 210,320.54, 315,483.54 and 60,563.28 is: 90,845.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,320.54 : 315,483.54 = 60,563.28 : x
  2. Step 2: Convert to fraction form
    210,320.54/315,483.54 = 60,563.28/x
  3. Step 3: Cross multiply
    210,320.54x = 315,483.54 × 60,563.28
  4. Step 4: Simplify right side
    210,320.54x = 19,106,717,968.41
  5. Step 5: Solve for x
    x = 19,106,717,968.41/210,320.54
  6. Step 6: Final answer
    x = 90,845.71

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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.