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Finding the Fourth Proportional to 228,683.80, 343,220.10 and 102,518.20

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Solution

The fourth proportional to 228,683.80, 343,220.10 and 102,518.20 is: 153,864.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,683.80 : 343,220.10 = 102,518.20 : x
  2. Step 2: Convert to fraction form
    228,683.80/343,220.10 = 102,518.20/x
  3. Step 3: Cross multiply
    228,683.80x = 343,220.10 × 102,518.20
  4. Step 4: Simplify right side
    228,683.80x = 35,186,306,855.82
  5. Step 5: Solve for x
    x = 35,186,306,855.82/228,683.80
  6. Step 6: Final answer
    x = 153,864.45

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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.