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Finding the Fourth Proportional to 247,533.36, 371,476.95 and 105,478.12

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Solution

The fourth proportional to 247,533.36, 371,476.95 and 105,478.12 is: 158,292.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,533.36 : 371,476.95 = 105,478.12 : x
  2. Step 2: Convert to fraction form
    247,533.36/371,476.95 = 105,478.12/x
  3. Step 3: Cross multiply
    247,533.36x = 371,476.95 × 105,478.12
  4. Step 4: Simplify right side
    247,533.36x = 39,182,690,309.33
  5. Step 5: Solve for x
    x = 39,182,690,309.33/247,533.36
  6. Step 6: Final answer
    x = 158,292.56

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1.5x scale

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.