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Finding the Fourth Proportional to 553,542,483.54, 830,321,773.44 and 144,598,677.78

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Solution

The fourth proportional to 553,542,483.54, 830,321,773.44 and 144,598,677.78 is: 216,900,119.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,542,483.54 : 830,321,773.44 = 144,598,677.78 : x
  2. Step 2: Convert to fraction form
    553,542,483.54/830,321,773.44 = 144,598,677.78/x
  3. Step 3: Cross multiply
    553,542,483.54x = 830,321,773.44 × 144,598,677.78
  4. Step 4: Simplify right side
    553,542,483.54x = 120,063,430,571,368,736
  5. Step 5: Solve for x
    x = 120,063,430,571,368,736/553,542,483.54
  6. Step 6: Final answer
    x = 216,900,119.04

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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.