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Finding the Fourth Proportional to 418,166.01, 627,287.90 and 118,653.93

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Solution

The fourth proportional to 418,166.01, 627,287.90 and 118,653.93 is: 177,991.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,166.01 : 627,287.90 = 118,653.93 : x
  2. Step 2: Convert to fraction form
    418,166.01/627,287.90 = 118,653.93/x
  3. Step 3: Cross multiply
    418,166.01x = 627,287.90 × 118,653.93
  4. Step 4: Simplify right side
    418,166.01x = 74,430,173,983.18
  5. Step 5: Solve for x
    x = 74,430,173,983.18/418,166.01
  6. Step 6: Final answer
    x = 177,991.93

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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.