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Finding the Fourth Proportional to 286,889.84, 395,685.54 and 184,931.90

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Solution

The fourth proportional to 286,889.84, 395,685.54 and 184,931.90 is: 255,062.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,889.84 : 395,685.54 = 184,931.90 : x
  2. Step 2: Convert to fraction form
    286,889.84/395,685.54 = 184,931.90/x
  3. Step 3: Cross multiply
    286,889.84x = 395,685.54 × 184,931.90
  4. Step 4: Simplify right side
    286,889.84x = 73,174,878,714.73
  5. Step 5: Solve for x
    x = 73,174,878,714.73/286,889.84
  6. Step 6: Final answer
    x = 255,062.64

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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.