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Finding the Fourth Proportional to 111,036.90, 166,684.95 and 63,689.70

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Solution

The fourth proportional to 111,036.90, 166,684.95 and 63,689.70 is: 95,608.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,036.90 : 166,684.95 = 63,689.70 : x
  2. Step 2: Convert to fraction form
    111,036.90/166,684.95 = 63,689.70/x
  3. Step 3: Cross multiply
    111,036.90x = 166,684.95 × 63,689.70
  4. Step 4: Simplify right side
    111,036.90x = 10,616,114,460.02
  5. Step 5: Solve for x
    x = 10,616,114,460.02/111,036.90
  6. Step 6: Final answer
    x = 95,608.89

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1.5x scale

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.