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Finding the Fourth Proportional to 145,162,652.40, 217,743,978.60 and 96,789,711.60

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Solution

The fourth proportional to 145,162,652.40, 217,743,978.60 and 96,789,711.60 is: 145,184,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,162,652.40 : 217,743,978.60 = 96,789,711.60 : x
  2. Step 2: Convert to fraction form
    145,162,652.40/217,743,978.60 = 96,789,711.60/x
  3. Step 3: Cross multiply
    145,162,652.40x = 217,743,978.60 × 96,789,711.60
  4. Step 4: Simplify right side
    145,162,652.40x = 21,075,376,891,330,568
  5. Step 5: Solve for x
    x = 21,075,376,891,330,568/145,162,652.40
  6. Step 6: Final answer
    x = 145,184,567.40

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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.