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Finding the Fourth Proportional to 360,375,671.36, 540,508,888.88 and 98,080,661.90

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Solution

The fourth proportional to 360,375,671.36, 540,508,888.88 and 98,080,661.90 is: 147,106,127.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,375,671.36 : 540,508,888.88 = 98,080,661.90 : x
  2. Step 2: Convert to fraction form
    360,375,671.36/540,508,888.88 = 98,080,661.90/x
  3. Step 3: Cross multiply
    360,375,671.36x = 540,508,888.88 × 98,080,661.90
  4. Step 4: Simplify right side
    360,375,671.36x = 53,013,469,584,429,160
  5. Step 5: Solve for x
    x = 53,013,469,584,429,160/360,375,671.36
  6. Step 6: Final answer
    x = 147,106,127.85

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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.