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Finding the Fourth Proportional to 519,058.32, 778,111.80 and 181,915.19

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Solution

The fourth proportional to 519,058.32, 778,111.80 and 181,915.19 is: 272,706.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,058.32 : 778,111.80 = 181,915.19 : x
  2. Step 2: Convert to fraction form
    519,058.32/778,111.80 = 181,915.19/x
  3. Step 3: Cross multiply
    519,058.32x = 778,111.80 × 181,915.19
  4. Step 4: Simplify right side
    519,058.32x = 141,550,356,620.42
  5. Step 5: Solve for x
    x = 141,550,356,620.42/519,058.32
  6. Step 6: Final answer
    x = 272,706.08

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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.