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Finding the Fourth Proportional to 122,686.92, 184,030.32 and 39,580.92

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Solution

The fourth proportional to 122,686.92, 184,030.32 and 39,580.92 is: 59,371.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,686.92 : 184,030.32 = 39,580.92 : x
  2. Step 2: Convert to fraction form
    122,686.92/184,030.32 = 39,580.92/x
  3. Step 3: Cross multiply
    122,686.92x = 184,030.32 × 39,580.92
  4. Step 4: Simplify right side
    122,686.92x = 7,284,089,373.49
  5. Step 5: Solve for x
    x = 7,284,089,373.49/122,686.92
  6. Step 6: Final answer
    x = 59,371.36

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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.