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Finding the Fourth Proportional to 455,743.55, 683,698.32 and 156,254.37

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Solution

The fourth proportional to 455,743.55, 683,698.32 and 156,254.37 is: 234,410.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,743.55 : 683,698.32 = 156,254.37 : x
  2. Step 2: Convert to fraction form
    455,743.55/683,698.32 = 156,254.37/x
  3. Step 3: Cross multiply
    455,743.55x = 683,698.32 × 156,254.37
  4. Step 4: Simplify right side
    455,743.55x = 106,830,850,261.66
  5. Step 5: Solve for x
    x = 106,830,850,261.66/455,743.55
  6. Step 6: Final answer
    x = 234,410.01

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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.