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Finding the Fourth Proportional to 201,417.30, 277,934.09 and 116,518.50

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Solution

The fourth proportional to 201,417.30, 277,934.09 and 116,518.50 is: 160,782.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,417.30 : 277,934.09 = 116,518.50 : x
  2. Step 2: Convert to fraction form
    201,417.30/277,934.09 = 116,518.50/x
  3. Step 3: Cross multiply
    201,417.30x = 277,934.09 × 116,518.50
  4. Step 4: Simplify right side
    201,417.30x = 32,384,462,683.07
  5. Step 5: Solve for x
    x = 32,384,462,683.07/201,417.30
  6. Step 6: Final answer
    x = 160,782.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.