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Finding the Fourth Proportional to 85,866.66, 118,480.77 and 51,852.42

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Solution

The fourth proportional to 85,866.66, 118,480.77 and 51,852.42 is: 71,547.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,866.66 : 118,480.77 = 51,852.42 : x
  2. Step 2: Convert to fraction form
    85,866.66/118,480.77 = 51,852.42/x
  3. Step 3: Cross multiply
    85,866.66x = 118,480.77 × 51,852.42
  4. Step 4: Simplify right side
    85,866.66x = 6,143,514,647.96
  5. Step 5: Solve for x
    x = 6,143,514,647.96/85,866.66
  6. Step 6: Final answer
    x = 71,547.15

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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.