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Finding the Fourth Proportional to 184,873.92, 255,008.56 and 121,215.84

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Solution

The fourth proportional to 184,873.92, 255,008.56 and 121,215.84 is: 167,200.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,873.92 : 255,008.56 = 121,215.84 : x
  2. Step 2: Convert to fraction form
    184,873.92/255,008.56 = 121,215.84/x
  3. Step 3: Cross multiply
    184,873.92x = 255,008.56 × 121,215.84
  4. Step 4: Simplify right side
    184,873.92x = 30,911,076,807.59
  5. Step 5: Solve for x
    x = 30,911,076,807.59/184,873.92
  6. Step 6: Final answer
    x = 167,200.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.