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Finding the Fourth Proportional to 151,881.74, 209,595.96 and 83,903.39

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Solution

The fourth proportional to 151,881.74, 209,595.96 and 83,903.39 is: 115,786.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,881.74 : 209,595.96 = 83,903.39 : x
  2. Step 2: Convert to fraction form
    151,881.74/209,595.96 = 83,903.39/x
  3. Step 3: Cross multiply
    151,881.74x = 209,595.96 × 83,903.39
  4. Step 4: Simplify right side
    151,881.74x = 17,585,810,526.32
  5. Step 5: Solve for x
    x = 17,585,810,526.32/151,881.74
  6. Step 6: Final answer
    x = 115,786.21

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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.