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Finding the Fourth Proportional to 455,808.28, 683,712.93 and 118,848.64

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Solution

The fourth proportional to 455,808.28, 683,712.93 and 118,848.64 is: 178,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,808.28 : 683,712.93 = 118,848.64 : x
  2. Step 2: Convert to fraction form
    455,808.28/683,712.93 = 118,848.64/x
  3. Step 3: Cross multiply
    455,808.28x = 683,712.93 × 118,848.64
  4. Step 4: Simplify right side
    455,808.28x = 81,258,352,819.43
  5. Step 5: Solve for x
    x = 81,258,352,819.43/455,808.28
  6. Step 6: Final answer
    x = 178,273.10

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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.