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Finding the Fourth Proportional to 274,036.34, 410,774.34 and 155,457.20

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Solution

The fourth proportional to 274,036.34, 410,774.34 and 155,457.20 is: 233,026.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,036.34 : 410,774.34 = 155,457.20 : x
  2. Step 2: Convert to fraction form
    274,036.34/410,774.34 = 155,457.20/x
  3. Step 3: Cross multiply
    274,036.34x = 410,774.34 × 155,457.20
  4. Step 4: Simplify right side
    274,036.34x = 63,857,828,728.25
  5. Step 5: Solve for x
    x = 63,857,828,728.25/274,036.34
  6. Step 6: Final answer
    x = 233,026.86

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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.