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Finding the Fourth Proportional to 7,202,666.88, 9,938,576.88 and 4,146,290.64

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Solution

The fourth proportional to 7,202,666.88, 9,938,576.88 and 4,146,290.64 is: 5,721,245.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,202,666.88 : 9,938,576.88 = 4,146,290.64 : x
  2. Step 2: Convert to fraction form
    7,202,666.88/9,938,576.88 = 4,146,290.64/x
  3. Step 3: Cross multiply
    7,202,666.88x = 9,938,576.88 × 4,146,290.64
  4. Step 4: Simplify right side
    7,202,666.88x = 41,208,228,292,464.41
  5. Step 5: Solve for x
    x = 41,208,228,292,464.41/7,202,666.88
  6. Step 6: Final answer
    x = 5,721,245.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.