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Finding the Fourth Proportional to 9,198,867.80, 13,798,301.70 and 5,602,783.70

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Solution

The fourth proportional to 9,198,867.80, 13,798,301.70 and 5,602,783.70 is: 8,404,175.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,198,867.80 : 13,798,301.70 = 5,602,783.70 : x
  2. Step 2: Convert to fraction form
    9,198,867.80/13,798,301.70 = 5,602,783.70/x
  3. Step 3: Cross multiply
    9,198,867.80x = 13,798,301.70 × 5,602,783.70
  4. Step 4: Simplify right side
    9,198,867.80x = 77,308,899,852,442.28
  5. Step 5: Solve for x
    x = 77,308,899,852,442.28/9,198,867.80
  6. Step 6: Final answer
    x = 8,404,175.55

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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.