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Finding the Fourth Proportional to 201,038.36, 277,455.07 and 115,005.27

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Solution

The fourth proportional to 201,038.36, 277,455.07 and 115,005.27 is: 158,719.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,038.36 : 277,455.07 = 115,005.27 : x
  2. Step 2: Convert to fraction form
    201,038.36/277,455.07 = 115,005.27/x
  3. Step 3: Cross multiply
    201,038.36x = 277,455.07 × 115,005.27
  4. Step 4: Simplify right side
    201,038.36x = 31,908,794,861.75
  5. Step 5: Solve for x
    x = 31,908,794,861.75/201,038.36
  6. Step 6: Final answer
    x = 158,719.94

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1.5x scale

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.