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Finding the Third Proportional to 56,036.81 and 121,915.13

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Solution

The third proportional to 56,036.81 and 121,915.13 is: 265,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,036.81 : 121,915.13 = 121,915.13 : x
  2. Step 2: Convert to fraction form
    56,036.81/121,915.13 = 121,915.13/x
  3. Step 3: Cross multiply
    56,036.81x = 121,915.13 × 121,915.13
  4. Step 4: Simplify right side
    56,036.81x = 14,863,297,703.77
  5. Step 5: Solve for x
    x = 14,863,297,703.77/56,036.81
  6. Step 6: Final answer
    x = 265,241.67

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.