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Finding the Fourth Proportional to 338,656.28, 508,009.95 and 114,017.36

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Solution

The fourth proportional to 338,656.28, 508,009.95 and 114,017.36 is: 171,034.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,656.28 : 508,009.95 = 114,017.36 : x
  2. Step 2: Convert to fraction form
    338,656.28/508,009.95 = 114,017.36/x
  3. Step 3: Cross multiply
    338,656.28x = 508,009.95 × 114,017.36
  4. Step 4: Simplify right side
    338,656.28x = 57,921,953,352.73
  5. Step 5: Solve for x
    x = 57,921,953,352.73/338,656.28
  6. Step 6: Final answer
    x = 171,034.64

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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.