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Finding the Fourth Proportional to 122,901.60, 184,244.40 and 83,330.40

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Solution

The fourth proportional to 122,901.60, 184,244.40 and 83,330.40 is: 124,922.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,901.60 : 184,244.40 = 83,330.40 : x
  2. Step 2: Convert to fraction form
    122,901.60/184,244.40 = 83,330.40/x
  3. Step 3: Cross multiply
    122,901.60x = 184,244.40 × 83,330.40
  4. Step 4: Simplify right side
    122,901.60x = 15,353,159,549.76
  5. Step 5: Solve for x
    x = 15,353,159,549.76/122,901.60
  6. Step 6: Final answer
    x = 124,922.37

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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.