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Finding the Fourth Proportional to 273,988.52, 378,096.62 and 153,130.28

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Solution

The fourth proportional to 273,988.52, 378,096.62 and 153,130.28 is: 211,315.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,988.52 : 378,096.62 = 153,130.28 : x
  2. Step 2: Convert to fraction form
    273,988.52/378,096.62 = 153,130.28/x
  3. Step 3: Cross multiply
    273,988.52x = 378,096.62 × 153,130.28
  4. Step 4: Simplify right side
    273,988.52x = 57,898,041,287.65
  5. Step 5: Solve for x
    x = 57,898,041,287.65/273,988.52
  6. Step 6: Final answer
    x = 211,315.57

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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.