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Finding the Fourth Proportional to 122,430.69, 183,702.53 and 55,891.22

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Solution

The fourth proportional to 122,430.69, 183,702.53 and 55,891.22 is: 83,862.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,430.69 : 183,702.53 = 55,891.22 : x
  2. Step 2: Convert to fraction form
    122,430.69/183,702.53 = 55,891.22/x
  3. Step 3: Cross multiply
    122,430.69x = 183,702.53 × 55,891.22
  4. Step 4: Simplify right side
    122,430.69x = 10,267,357,740.00
  5. Step 5: Solve for x
    x = 10,267,357,740.00/122,430.69
  6. Step 6: Final answer
    x = 83,862.61

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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.