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Finding the Fourth Proportional to 139,968,254.80, 209,952,382.20 and 96,130,277.20

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Solution

The fourth proportional to 139,968,254.80, 209,952,382.20 and 96,130,277.20 is: 144,195,415.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,254.80 : 209,952,382.20 = 96,130,277.20 : x
  2. Step 2: Convert to fraction form
    139,968,254.80/209,952,382.20 = 96,130,277.20/x
  3. Step 3: Cross multiply
    139,968,254.80x = 209,952,382.20 × 96,130,277.20
  4. Step 4: Simplify right side
    139,968,254.80x = 20,182,780,699,686,344
  5. Step 5: Solve for x
    x = 20,182,780,699,686,344/139,968,254.80
  6. Step 6: Final answer
    x = 144,195,415.80

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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.