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Finding the Fourth Proportional to 243,374.10, 365,061.15 and 216,935.70

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Solution

The fourth proportional to 243,374.10, 365,061.15 and 216,935.70 is: 325,403.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,374.10 : 365,061.15 = 216,935.70 : x
  2. Step 2: Convert to fraction form
    243,374.10/365,061.15 = 216,935.70/x
  3. Step 3: Cross multiply
    243,374.10x = 365,061.15 × 216,935.70
  4. Step 4: Simplify right side
    243,374.10x = 79,194,796,118.06
  5. Step 5: Solve for x
    x = 79,194,796,118.06/243,374.10
  6. Step 6: Final answer
    x = 325,403.55

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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.