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Finding the Fourth Proportional to 220,572,615.40, 330,871,364.70 and 67,223,674.60

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Solution

The fourth proportional to 220,572,615.40, 330,871,364.70 and 67,223,674.60 is: 100,839,303.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,572,615.40 : 330,871,364.70 = 67,223,674.60 : x
  2. Step 2: Convert to fraction form
    220,572,615.40/330,871,364.70 = 67,223,674.60/x
  3. Step 3: Cross multiply
    220,572,615.40x = 330,871,364.70 × 67,223,674.60
  4. Step 4: Simplify right side
    220,572,615.40x = 22,242,388,955,050,724
  5. Step 5: Solve for x
    x = 22,242,388,955,050,724/220,572,615.40
  6. Step 6: Final answer
    x = 100,839,303.71

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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.