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Finding the Fourth Proportional to 255,048.51, 351,929.79 and 153,052.29

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Solution

The fourth proportional to 255,048.51, 351,929.79 and 153,052.29 is: 211,189.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,048.51 : 351,929.79 = 153,052.29 : x
  2. Step 2: Convert to fraction form
    255,048.51/351,929.79 = 153,052.29/x
  3. Step 3: Cross multiply
    255,048.51x = 351,929.79 × 153,052.29
  4. Step 4: Simplify right side
    255,048.51x = 53,863,660,278.72
  5. Step 5: Solve for x
    x = 53,863,660,278.72/255,048.51
  6. Step 6: Final answer
    x = 211,189.86

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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.