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Finding the Fourth Proportional to 338,898.90, 508,037.29 and 117,127.38

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Solution

The fourth proportional to 338,898.90, 508,037.29 and 117,127.38 is: 175,583.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,898.90 : 508,037.29 = 117,127.38 : x
  2. Step 2: Convert to fraction form
    338,898.90/508,037.29 = 117,127.38/x
  3. Step 3: Cross multiply
    338,898.90x = 508,037.29 × 117,127.38
  4. Step 4: Simplify right side
    338,898.90x = 59,505,076,720.00
  5. Step 5: Solve for x
    x = 59,505,076,720.00/338,898.90
  6. Step 6: Final answer
    x = 175,583.56

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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.