Home / 212,823.02-319,237.68-63,078.50

Finding the Fourth Proportional to 212,823.02, 319,237.68 and 63,078.50

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Solution

The fourth proportional to 212,823.02, 319,237.68 and 63,078.50 is: 94,618.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,823.02 : 319,237.68 = 63,078.50 : x
  2. Step 2: Convert to fraction form
    212,823.02/319,237.68 = 63,078.50/x
  3. Step 3: Cross multiply
    212,823.02x = 319,237.68 × 63,078.50
  4. Step 4: Simplify right side
    212,823.02x = 20,137,033,997.88
  5. Step 5: Solve for x
    x = 20,137,033,997.88/212,823.02
  6. Step 6: Final answer
    x = 94,618.68

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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.