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Finding the Fourth Proportional to 251,495.48, 377,303.16 and 74,008.28

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Solution

The fourth proportional to 251,495.48, 377,303.16 and 74,008.28 is: 111,030.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,495.48 : 377,303.16 = 74,008.28 : x
  2. Step 2: Convert to fraction form
    251,495.48/377,303.16 = 74,008.28/x
  3. Step 3: Cross multiply
    251,495.48x = 377,303.16 × 74,008.28
  4. Step 4: Simplify right side
    251,495.48x = 27,923,559,130.95
  5. Step 5: Solve for x
    x = 27,923,559,130.95/251,495.48
  6. Step 6: Final answer
    x = 111,030.06

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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.