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Finding the Fourth Proportional to 169,994.60, 255,030.30 and 99,837.80

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Solution

The fourth proportional to 169,994.60, 255,030.30 and 99,837.80 is: 149,779.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,994.60 : 255,030.30 = 99,837.80 : x
  2. Step 2: Convert to fraction form
    169,994.60/255,030.30 = 99,837.80/x
  3. Step 3: Cross multiply
    169,994.60x = 255,030.30 × 99,837.80
  4. Step 4: Simplify right side
    169,994.60x = 25,461,664,085.34
  5. Step 5: Solve for x
    x = 25,461,664,085.34/169,994.60
  6. Step 6: Final answer
    x = 149,779.25

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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.