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Finding the Fourth Proportional to 122,058.78, 183,088.78 and 43,173.08

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Solution

The fourth proportional to 122,058.78, 183,088.78 and 43,173.08 is: 64,759.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,058.78 : 183,088.78 = 43,173.08 : x
  2. Step 2: Convert to fraction form
    122,058.78/183,088.78 = 43,173.08/x
  3. Step 3: Cross multiply
    122,058.78x = 183,088.78 × 43,173.08
  4. Step 4: Simplify right side
    122,058.78x = 7,904,506,546.04
  5. Step 5: Solve for x
    x = 7,904,506,546.04/122,058.78
  6. Step 6: Final answer
    x = 64,759.84

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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.