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Finding the Fourth Proportional to 446,652,003.60, 669,978,248.40 and 139,968,118.80

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Solution

The fourth proportional to 446,652,003.60, 669,978,248.40 and 139,968,118.80 is: 209,952,254.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,652,003.60 : 669,978,248.40 = 139,968,118.80 : x
  2. Step 2: Convert to fraction form
    446,652,003.60/669,978,248.40 = 139,968,118.80/x
  3. Step 3: Cross multiply
    446,652,003.60x = 669,978,248.40 × 139,968,118.80
  4. Step 4: Simplify right side
    446,652,003.60x = 93,775,595,065,467,120
  5. Step 5: Solve for x
    x = 93,775,595,065,467,120/446,652,003.60
  6. Step 6: Final answer
    x = 209,952,254.35

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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.