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Finding the Fourth Proportional to 255,878.58, 352,998.30 and 148,386.36

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Solution

The fourth proportional to 255,878.58, 352,998.30 and 148,386.36 is: 204,706.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,878.58 : 352,998.30 = 148,386.36 : x
  2. Step 2: Convert to fraction form
    255,878.58/352,998.30 = 148,386.36/x
  3. Step 3: Cross multiply
    255,878.58x = 352,998.30 × 148,386.36
  4. Step 4: Simplify right side
    255,878.58x = 52,380,134,703.38
  5. Step 5: Solve for x
    x = 52,380,134,703.38/255,878.58
  6. Step 6: Final answer
    x = 204,706.99

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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.