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Finding the Fourth Proportional to 43,781,603.60, 65,672,405.40 and 25,641,750.80

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Solution

The fourth proportional to 43,781,603.60, 65,672,405.40 and 25,641,750.80 is: 38,462,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,781,603.60 : 65,672,405.40 = 25,641,750.80 : x
  2. Step 2: Convert to fraction form
    43,781,603.60/65,672,405.40 = 25,641,750.80/x
  3. Step 3: Cross multiply
    43,781,603.60x = 65,672,405.40 × 25,641,750.80
  4. Step 4: Simplify right side
    43,781,603.60x = 1,683,955,453,703,374.25
  5. Step 5: Solve for x
    x = 1,683,955,453,703,374.25/43,781,603.60
  6. Step 6: Final answer
    x = 38,462,626.20

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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.