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Finding the Fourth Proportional to 376,851.06, 520,058.56 and 207,085.16

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Solution

The fourth proportional to 376,851.06, 520,058.56 and 207,085.16 is: 285,779.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,851.06 : 520,058.56 = 207,085.16 : x
  2. Step 2: Convert to fraction form
    376,851.06/520,058.56 = 207,085.16/x
  3. Step 3: Cross multiply
    376,851.06x = 520,058.56 × 207,085.16
  4. Step 4: Simplify right side
    376,851.06x = 107,696,410,106.97
  5. Step 5: Solve for x
    x = 107,696,410,106.97/376,851.06
  6. Step 6: Final answer
    x = 285,779.77

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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.