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Finding the Fourth Proportional to 264,475, 396,712.50 and 67,483

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Solution

The fourth proportional to 264,475, 396,712.50 and 67,483 is: 101,224.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,475 : 396,712.50 = 67,483 : x
  2. Step 2: Convert to fraction form
    264,475/396,712.50 = 67,483/x
  3. Step 3: Cross multiply
    264,475x = 396,712.50 × 67,483
  4. Step 4: Simplify right side
    264,475x = 26,771,349,637.50
  5. Step 5: Solve for x
    x = 26,771,349,637.50/264,475
  6. Step 6: Final answer
    x = 101,224.50

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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.