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Finding the Fourth Proportional to 230,480.60, 318,075.54 and 134,994.56

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Solution

The fourth proportional to 230,480.60, 318,075.54 and 134,994.56 is: 186,299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,480.60 : 318,075.54 = 134,994.56 : x
  2. Step 2: Convert to fraction form
    230,480.60/318,075.54 = 134,994.56/x
  3. Step 3: Cross multiply
    230,480.60x = 318,075.54 × 134,994.56
  4. Step 4: Simplify right side
    230,480.60x = 42,938,467,569.06
  5. Step 5: Solve for x
    x = 42,938,467,569.06/230,480.60
  6. Step 6: Final answer
    x = 186,299.70

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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.