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Finding the Fourth Proportional to 70,114,296.88, 96,762,736.62 and 38,751,671.16

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Solution

The fourth proportional to 70,114,296.88, 96,762,736.62 and 38,751,671.16 is: 53,480,073.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,114,296.88 : 96,762,736.62 = 38,751,671.16 : x
  2. Step 2: Convert to fraction form
    70,114,296.88/96,762,736.62 = 38,751,671.16/x
  3. Step 3: Cross multiply
    70,114,296.88x = 96,762,736.62 × 38,751,671.16
  4. Step 4: Simplify right side
    70,114,296.88x = 3,749,717,750,039,929.50
  5. Step 5: Solve for x
    x = 3,749,717,750,039,929.50/70,114,296.88
  6. Step 6: Final answer
    x = 53,480,073.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.