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Finding the Fourth Proportional to 122,979.70, 184,501.95 and 44,085.70

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Solution

The fourth proportional to 122,979.70, 184,501.95 and 44,085.70 is: 66,140.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,979.70 : 184,501.95 = 44,085.70 : x
  2. Step 2: Convert to fraction form
    122,979.70/184,501.95 = 44,085.70/x
  3. Step 3: Cross multiply
    122,979.70x = 184,501.95 × 44,085.70
  4. Step 4: Simplify right side
    122,979.70x = 8,133,897,617.12
  5. Step 5: Solve for x
    x = 8,133,897,617.12/122,979.70
  6. Step 6: Final answer
    x = 66,140.16

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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.