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Finding the Fourth Proportional to 243,603.70, 365,405.55 and 168,808.30

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Solution

The fourth proportional to 243,603.70, 365,405.55 and 168,808.30 is: 253,212.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,603.70 : 365,405.55 = 168,808.30 : x
  2. Step 2: Convert to fraction form
    243,603.70/365,405.55 = 168,808.30/x
  3. Step 3: Cross multiply
    243,603.70x = 365,405.55 × 168,808.30
  4. Step 4: Simplify right side
    243,603.70x = 61,683,489,706.07
  5. Step 5: Solve for x
    x = 61,683,489,706.07/243,603.70
  6. Step 6: Final answer
    x = 253,212.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.