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Finding the Fourth Proportional to 122,336.40, 183,504.60 and 69,848.40

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Solution

The fourth proportional to 122,336.40, 183,504.60 and 69,848.40 is: 104,772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,336.40 : 183,504.60 = 69,848.40 : x
  2. Step 2: Convert to fraction form
    122,336.40/183,504.60 = 69,848.40/x
  3. Step 3: Cross multiply
    122,336.40x = 183,504.60 × 69,848.40
  4. Step 4: Simplify right side
    122,336.40x = 12,817,502,702.64
  5. Step 5: Solve for x
    x = 12,817,502,702.64/122,336.40
  6. Step 6: Final answer
    x = 104,772.60

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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.