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Finding the Fourth Proportional to 264,071,303.40, 396,104,986.80 and 79,838,423.40

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Solution

The fourth proportional to 264,071,303.40, 396,104,986.80 and 79,838,423.40 is: 119,757,040.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,071,303.40 : 396,104,986.80 = 79,838,423.40 : x
  2. Step 2: Convert to fraction form
    264,071,303.40/396,104,986.80 = 79,838,423.40/x
  3. Step 3: Cross multiply
    264,071,303.40x = 396,104,986.80 × 79,838,423.40
  4. Step 4: Simplify right side
    264,071,303.40x = 31,624,397,646,989,816
  5. Step 5: Solve for x
    x = 31,624,397,646,989,816/264,071,303.40
  6. Step 6: Final answer
    x = 119,757,040.01

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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.