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Finding the Third Proportional to 74,804.50 and 163,685

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Solution

The third proportional to 74,804.50 and 163,685 is: 358,170.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,804.50 : 163,685 = 163,685 : x
  2. Step 2: Convert to fraction form
    74,804.50/163,685 = 163,685/x
  3. Step 3: Cross multiply
    74,804.50x = 163,685 × 163,685
  4. Step 4: Simplify right side
    74,804.50x = 26,792,779,225
  5. Step 5: Solve for x
    x = 26,792,779,225/74,804.50
  6. Step 6: Final answer
    x = 358,170.69

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.