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Finding the Fourth Proportional to 405,868,425.93, 608,797,327.46 and 99,163,196.01

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Solution

The fourth proportional to 405,868,425.93, 608,797,327.46 and 99,163,196.01 is: 148,743,496.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,868,425.93 : 608,797,327.46 = 99,163,196.01 : x
  2. Step 2: Convert to fraction form
    405,868,425.93/608,797,327.46 = 99,163,196.01/x
  3. Step 3: Cross multiply
    405,868,425.93x = 608,797,327.46 × 99,163,196.01
  4. Step 4: Simplify right side
    405,868,425.93x = 60,370,288,712,784,328
  5. Step 5: Solve for x
    x = 60,370,288,712,784,328/405,868,425.93
  6. Step 6: Final answer
    x = 148,743,496.31

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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.