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Finding the Fourth Proportional to 96,978,409.80, 145,467,614.70 and 60,627,845.40

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Solution

The fourth proportional to 96,978,409.80, 145,467,614.70 and 60,627,845.40 is: 90,941,768.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,978,409.80 : 145,467,614.70 = 60,627,845.40 : x
  2. Step 2: Convert to fraction form
    96,978,409.80/145,467,614.70 = 60,627,845.40/x
  3. Step 3: Cross multiply
    96,978,409.80x = 145,467,614.70 × 60,627,845.40
  4. Step 4: Simplify right side
    96,978,409.80x = 8,819,388,054,738,366
  5. Step 5: Solve for x
    x = 8,819,388,054,738,366/96,978,409.80
  6. Step 6: Final answer
    x = 90,941,768.10

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1.5x scale

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.