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Finding the Fourth Proportional to 163,313.70, 244,970.55 and 121,323.30

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Solution

The fourth proportional to 163,313.70, 244,970.55 and 121,323.30 is: 181,984.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,313.70 : 244,970.55 = 121,323.30 : x
  2. Step 2: Convert to fraction form
    163,313.70/244,970.55 = 121,323.30/x
  3. Step 3: Cross multiply
    163,313.70x = 244,970.55 × 121,323.30
  4. Step 4: Simplify right side
    163,313.70x = 29,720,635,528.82
  5. Step 5: Solve for x
    x = 29,720,635,528.82/163,313.70
  6. Step 6: Final answer
    x = 181,984.95

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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.