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Finding the Fourth Proportional to 208,055.70, 287,132.04 and 117,419.59

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Solution

The fourth proportional to 208,055.70, 287,132.04 and 117,419.59 is: 162,047.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,055.70 : 287,132.04 = 117,419.59 : x
  2. Step 2: Convert to fraction form
    208,055.70/287,132.04 = 117,419.59/x
  3. Step 3: Cross multiply
    208,055.70x = 287,132.04 × 117,419.59
  4. Step 4: Simplify right side
    208,055.70x = 33,714,926,412.66
  5. Step 5: Solve for x
    x = 33,714,926,412.66/208,055.70
  6. Step 6: Final answer
    x = 162,047.60

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