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Finding the Fourth Proportional to 163,774.65, 245,661.98 and 45,446.03

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Solution

The fourth proportional to 163,774.65, 245,661.98 and 45,446.03 is: 68,169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,774.65 : 245,661.98 = 45,446.03 : x
  2. Step 2: Convert to fraction form
    163,774.65/245,661.98 = 45,446.03/x
  3. Step 3: Cross multiply
    163,774.65x = 245,661.98 × 45,446.03
  4. Step 4: Simplify right side
    163,774.65x = 11,164,362,440.71
  5. Step 5: Solve for x
    x = 11,164,362,440.71/163,774.65
  6. Step 6: Final answer
    x = 68,169.05

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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.