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Finding the Third Proportional to 59,990 and 93,129

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Solution

The third proportional to 59,990 and 93,129 is: 144,574.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,990 : 93,129 = 93,129 : x
  2. Step 2: Convert to fraction form
    59,990/93,129 = 93,129/x
  3. Step 3: Cross multiply
    59,990x = 93,129 × 93,129
  4. Step 4: Simplify right side
    59,990x = 8,673,010,641
  5. Step 5: Solve for x
    x = 8,673,010,641/59,990
  6. Step 6: Final answer
    x = 144,574.27

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.