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Finding the Third Proportional to 66,639,112 and 101,730,120

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Solution

The third proportional to 66,639,112 and 101,730,120 is: 155,299,448.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,639,112 : 101,730,120 = 101,730,120 : x
  2. Step 2: Convert to fraction form
    66,639,112/101,730,120 = 101,730,120/x
  3. Step 3: Cross multiply
    66,639,112x = 101,730,120 × 101,730,120
  4. Step 4: Simplify right side
    66,639,112x = 10,349,017,315,214,400
  5. Step 5: Solve for x
    x = 10,349,017,315,214,400/66,639,112
  6. Step 6: Final answer
    x = 155,299,448.10

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.