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Finding the Fourth Proportional to 70,480,003.10, 105,720,004.65 and 70,480,003.10

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Solution

The fourth proportional to 70,480,003.10, 105,720,004.65 and 70,480,003.10 is: 105,720,004.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,480,003.10 : 105,720,004.65 = 70,480,003.10 : x
  2. Step 2: Convert to fraction form
    70,480,003.10/105,720,004.65 = 70,480,003.10/x
  3. Step 3: Cross multiply
    70,480,003.10x = 105,720,004.65 × 70,480,003.10
  4. Step 4: Simplify right side
    70,480,003.10x = 7,451,146,255,464,014
  5. Step 5: Solve for x
    x = 7,451,146,255,464,014/70,480,003.10
  6. Step 6: Final answer
    x = 105,720,004.65

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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.