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Finding the Fourth Proportional to 563,739.95, 845,519.90 and 164,287.28

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Solution

The fourth proportional to 563,739.95, 845,519.90 and 164,287.28 is: 246,404.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,739.95 : 845,519.90 = 164,287.28 : x
  2. Step 2: Convert to fraction form
    563,739.95/845,519.90 = 164,287.28/x
  3. Step 3: Cross multiply
    563,739.95x = 845,519.90 × 164,287.28
  4. Step 4: Simplify right side
    563,739.95x = 138,908,159,507.84
  5. Step 5: Solve for x
    x = 138,908,159,507.84/563,739.95
  6. Step 6: Final answer
    x = 246,404.68

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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.