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Finding the Fourth Proportional to 275,492.66, 380,153.62 and 154,606.23

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Solution

The fourth proportional to 275,492.66, 380,153.62 and 154,606.23 is: 213,341.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,492.66 : 380,153.62 = 154,606.23 : x
  2. Step 2: Convert to fraction form
    275,492.66/380,153.62 = 154,606.23/x
  3. Step 3: Cross multiply
    275,492.66x = 380,153.62 × 154,606.23
  4. Step 4: Simplify right side
    275,492.66x = 58,774,118,009.05
  5. Step 5: Solve for x
    x = 58,774,118,009.05/275,492.66
  6. Step 6: Final answer
    x = 213,341.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.