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Finding the Fourth Proportional to 376,377.02, 519,386.85 and 213,030.02

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Solution

The fourth proportional to 376,377.02, 519,386.85 and 213,030.02 is: 293,973.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,377.02 : 519,386.85 = 213,030.02 : x
  2. Step 2: Convert to fraction form
    376,377.02/519,386.85 = 213,030.02/x
  3. Step 3: Cross multiply
    376,377.02x = 519,386.85 × 213,030.02
  4. Step 4: Simplify right side
    376,377.02x = 110,644,991,043.24
  5. Step 5: Solve for x
    x = 110,644,991,043.24/376,377.02
  6. Step 6: Final answer
    x = 293,973.82

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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.