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Finding the Fourth Proportional to 292,618.08, 438,927.09 and 82,256.01

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Solution

The fourth proportional to 292,618.08, 438,927.09 and 82,256.01 is: 123,384.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,618.08 : 438,927.09 = 82,256.01 : x
  2. Step 2: Convert to fraction form
    292,618.08/438,927.09 = 82,256.01/x
  3. Step 3: Cross multiply
    292,618.08x = 438,927.09 × 82,256.01
  4. Step 4: Simplify right side
    292,618.08x = 36,104,391,104.31
  5. Step 5: Solve for x
    x = 36,104,391,104.31/292,618.08
  6. Step 6: Final answer
    x = 123,384.01

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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.