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Finding the Fourth Proportional to 122,927.60, 184,391.40 and 75,688.40

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Solution

The fourth proportional to 122,927.60, 184,391.40 and 75,688.40 is: 113,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,927.60 : 184,391.40 = 75,688.40 : x
  2. Step 2: Convert to fraction form
    122,927.60/184,391.40 = 75,688.40/x
  3. Step 3: Cross multiply
    122,927.60x = 184,391.40 × 75,688.40
  4. Step 4: Simplify right side
    122,927.60x = 13,956,290,039.76
  5. Step 5: Solve for x
    x = 13,956,290,039.76/122,927.60
  6. Step 6: Final answer
    x = 113,532.60

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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.