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Finding the Fourth Proportional to 364,072.70, 545,914.65 and 153,472.70

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Solution

The fourth proportional to 364,072.70, 545,914.65 and 153,472.70 is: 230,127.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,072.70 : 545,914.65 = 153,472.70 : x
  2. Step 2: Convert to fraction form
    364,072.70/545,914.65 = 153,472.70/x
  3. Step 3: Cross multiply
    364,072.70x = 545,914.65 × 153,472.70
  4. Step 4: Simplify right side
    364,072.70x = 83,782,995,305.06
  5. Step 5: Solve for x
    x = 83,782,995,305.06/364,072.70
  6. Step 6: Final answer
    x = 230,127.10

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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.