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Finding the Fourth Proportional to 254,871,016.80, 382,308,737.71 and 82,347,848.74

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Solution

The fourth proportional to 254,871,016.80, 382,308,737.71 and 82,347,848.74 is: 123,522,487.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,871,016.80 : 382,308,737.71 = 82,347,848.74 : x
  2. Step 2: Convert to fraction form
    254,871,016.80/382,308,737.71 = 82,347,848.74/x
  3. Step 3: Cross multiply
    254,871,016.80x = 382,308,737.71 × 82,347,848.74
  4. Step 4: Simplify right side
    254,871,016.80x = 31,482,302,104,923,412
  5. Step 5: Solve for x
    x = 31,482,302,104,923,412/254,871,016.80
  6. Step 6: Final answer
    x = 123,522,487.96

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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.