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Finding the Fourth Proportional to 110,808,012.80, 155,386,309.60 and 110,808,012.80

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Solution

The fourth proportional to 110,808,012.80, 155,386,309.60 and 110,808,012.80 is: 155,386,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,808,012.80 : 155,386,309.60 = 110,808,012.80 : x
  2. Step 2: Convert to fraction form
    110,808,012.80/155,386,309.60 = 110,808,012.80/x
  3. Step 3: Cross multiply
    110,808,012.80x = 155,386,309.60 × 110,808,012.80
  4. Step 4: Simplify right side
    110,808,012.80x = 17,218,048,183,101,562
  5. Step 5: Solve for x
    x = 17,218,048,183,101,562/110,808,012.80
  6. Step 6: Final answer
    x = 155,386,309.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.