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Finding the Fourth Proportional to 236,603.64, 354,969.30 and 103,495.80

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Solution

The fourth proportional to 236,603.64, 354,969.30 and 103,495.80 is: 155,271.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,603.64 : 354,969.30 = 103,495.80 : x
  2. Step 2: Convert to fraction form
    236,603.64/354,969.30 = 103,495.80/x
  3. Step 3: Cross multiply
    236,603.64x = 354,969.30 × 103,495.80
  4. Step 4: Simplify right side
    236,603.64x = 36,737,831,678.94
  5. Step 5: Solve for x
    x = 36,737,831,678.94/236,603.64
  6. Step 6: Final answer
    x = 155,271.63

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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.