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Finding the Fourth Proportional to 184,875.12, 255,128.13 and 99,993.06

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Solution

The fourth proportional to 184,875.12, 255,128.13 and 99,993.06 is: 137,990.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,875.12 : 255,128.13 = 99,993.06 : x
  2. Step 2: Convert to fraction form
    184,875.12/255,128.13 = 99,993.06/x
  3. Step 3: Cross multiply
    184,875.12x = 255,128.13 × 99,993.06
  4. Step 4: Simplify right side
    184,875.12x = 25,511,042,410.78
  5. Step 5: Solve for x
    x = 25,511,042,410.78/184,875.12
  6. Step 6: Final answer
    x = 137,990.67

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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.