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Finding the Fourth Proportional to 133,903.23, 184,784.85 and 77,313.39

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Solution

The fourth proportional to 133,903.23, 184,784.85 and 77,313.39 is: 106,691.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,903.23 : 184,784.85 = 77,313.39 : x
  2. Step 2: Convert to fraction form
    133,903.23/184,784.85 = 77,313.39/x
  3. Step 3: Cross multiply
    133,903.23x = 184,784.85 × 77,313.39
  4. Step 4: Simplify right side
    133,903.23x = 14,286,343,174.14
  5. Step 5: Solve for x
    x = 14,286,343,174.14/133,903.23
  6. Step 6: Final answer
    x = 106,691.55

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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.