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Finding the Fourth Proportional to 7,148,699.58, 9,865,159.16 and 4,093,504.32

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Solution

The fourth proportional to 7,148,699.58, 9,865,159.16 and 4,093,504.32 is: 5,649,009.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148,699.58 : 9,865,159.16 = 4,093,504.32 : x
  2. Step 2: Convert to fraction form
    7,148,699.58/9,865,159.16 = 4,093,504.32/x
  3. Step 3: Cross multiply
    7,148,699.58x = 9,865,159.16 × 4,093,504.32
  4. Step 4: Simplify right side
    7,148,699.58x = 40,383,071,618,480.05
  5. Step 5: Solve for x
    x = 40,383,071,618,480.05/7,148,699.58
  6. Step 6: Final answer
    x = 5,649,009.47

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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.