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Finding the Fourth Proportional to 68,503.46, 102,763.35 and 29,055.38

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Solution

The fourth proportional to 68,503.46, 102,763.35 and 29,055.38 is: 43,586.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,503.46 : 102,763.35 = 29,055.38 : x
  2. Step 2: Convert to fraction form
    68,503.46/102,763.35 = 29,055.38/x
  3. Step 3: Cross multiply
    68,503.46x = 102,763.35 × 29,055.38
  4. Step 4: Simplify right side
    68,503.46x = 2,985,827,670.51
  5. Step 5: Solve for x
    x = 2,985,827,670.51/68,503.46
  6. Step 6: Final answer
    x = 43,586.53

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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.