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Finding the Fourth Proportional to 455,970.60, 683,994.78 and 119,055.96

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Solution

The fourth proportional to 455,970.60, 683,994.78 and 119,055.96 is: 178,594.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,970.60 : 683,994.78 = 119,055.96 : x
  2. Step 2: Convert to fraction form
    455,970.60/683,994.78 = 119,055.96/x
  3. Step 3: Cross multiply
    455,970.60x = 683,994.78 × 119,055.96
  4. Step 4: Simplify right side
    455,970.60x = 81,433,655,167.89
  5. Step 5: Solve for x
    x = 81,433,655,167.89/455,970.60
  6. Step 6: Final answer
    x = 178,594.09

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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.