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Finding the Fourth Proportional to 184,875.80, 255,128.60 and 99,992.86

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Solution

The fourth proportional to 184,875.80, 255,128.60 and 99,992.86 is: 137,990.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,875.80 : 255,128.60 = 99,992.86 : x
  2. Step 2: Convert to fraction form
    184,875.80/255,128.60 = 99,992.86/x
  3. Step 3: Cross multiply
    184,875.80x = 255,128.60 × 99,992.86
  4. Step 4: Simplify right side
    184,875.80x = 25,511,037,993.96
  5. Step 5: Solve for x
    x = 25,511,037,993.96/184,875.80
  6. Step 6: Final answer
    x = 137,990.15

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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.