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Finding the Fourth Proportional to 354,294,382.90, 531,441,574.35 and 124,180,429.90

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Solution

The fourth proportional to 354,294,382.90, 531,441,574.35 and 124,180,429.90 is: 186,270,644.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,382.90 : 531,441,574.35 = 124,180,429.90 : x
  2. Step 2: Convert to fraction form
    354,294,382.90/531,441,574.35 = 124,180,429.90/x
  3. Step 3: Cross multiply
    354,294,382.90x = 531,441,574.35 × 124,180,429.90
  4. Step 4: Simplify right side
    354,294,382.90x = 65,994,643,169,515,816
  5. Step 5: Solve for x
    x = 65,994,643,169,515,816/354,294,382.90
  6. Step 6: Final answer
    x = 186,270,644.85

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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.