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Finding the Fourth Proportional to 133,830.88, 184,686.60 and 74,214.88

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Solution

The fourth proportional to 133,830.88, 184,686.60 and 74,214.88 is: 102,416.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,830.88 : 184,686.60 = 74,214.88 : x
  2. Step 2: Convert to fraction form
    133,830.88/184,686.60 = 74,214.88/x
  3. Step 3: Cross multiply
    133,830.88x = 184,686.60 × 74,214.88
  4. Step 4: Simplify right side
    133,830.88x = 13,706,493,856.61
  5. Step 5: Solve for x
    x = 13,706,493,856.61/133,830.88
  6. Step 6: Final answer
    x = 102,416.53

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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.