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Finding the Fourth Proportional to 122,312.84, 183,496.86 and 43,427.07

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Solution

The fourth proportional to 122,312.84, 183,496.86 and 43,427.07 is: 65,150.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,312.84 : 183,496.86 = 43,427.07 : x
  2. Step 2: Convert to fraction form
    122,312.84/183,496.86 = 43,427.07/x
  3. Step 3: Cross multiply
    122,312.84x = 183,496.86 × 43,427.07
  4. Step 4: Simplify right side
    122,312.84x = 7,968,730,984.00
  5. Step 5: Solve for x
    x = 7,968,730,984.00/122,312.84
  6. Step 6: Final answer
    x = 65,150.41

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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.