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Finding the Fourth Proportional to 151,994.60, 209,746.02 and 84,008.06

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Solution

The fourth proportional to 151,994.60, 209,746.02 and 84,008.06 is: 115,927.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,994.60 : 209,746.02 = 84,008.06 : x
  2. Step 2: Convert to fraction form
    151,994.60/209,746.02 = 84,008.06/x
  3. Step 3: Cross multiply
    151,994.60x = 209,746.02 × 84,008.06
  4. Step 4: Simplify right side
    151,994.60x = 17,620,356,232.92
  5. Step 5: Solve for x
    x = 17,620,356,232.92/151,994.60
  6. Step 6: Final answer
    x = 115,927.51

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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.