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Finding the Fourth Proportional to 255,117.33, 382,543.64 and 75,179.48

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Solution

The fourth proportional to 255,117.33, 382,543.64 and 75,179.48 is: 112,730.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,117.33 : 382,543.64 = 75,179.48 : x
  2. Step 2: Convert to fraction form
    255,117.33/382,543.64 = 75,179.48/x
  3. Step 3: Cross multiply
    255,117.33x = 382,543.64 × 75,179.48
  4. Step 4: Simplify right side
    255,117.33x = 28,759,431,932.51
  5. Step 5: Solve for x
    x = 28,759,431,932.51/255,117.33
  6. Step 6: Final answer
    x = 112,730.22

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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.