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Finding the Fourth Proportional to 10,109,910.45, 15,164,865.68 and 10,109,910.45

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Solution

The fourth proportional to 10,109,910.45, 15,164,865.68 and 10,109,910.45 is: 15,164,865.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109,910.45 : 15,164,865.68 = 10,109,910.45 : x
  2. Step 2: Convert to fraction form
    10,109,910.45/15,164,865.68 = 10,109,910.45/x
  3. Step 3: Cross multiply
    10,109,910.45x = 15,164,865.68 × 10,109,910.45
  4. Step 4: Simplify right side
    10,109,910.45x = 153,315,433,960,528.81
  5. Step 5: Solve for x
    x = 153,315,433,960,528.81/10,109,910.45
  6. Step 6: Final answer
    x = 15,164,865.68

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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.