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Finding the Fourth Proportional to 69,218.30, 103,681.65 and 69,218.30

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Solution

The fourth proportional to 69,218.30, 103,681.65 and 69,218.30 is: 103,681.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,218.30 : 103,681.65 = 69,218.30 : x
  2. Step 2: Convert to fraction form
    69,218.30/103,681.65 = 69,218.30/x
  3. Step 3: Cross multiply
    69,218.30x = 103,681.65 × 69,218.30
  4. Step 4: Simplify right side
    69,218.30x = 7,176,667,554.20
  5. Step 5: Solve for x
    x = 7,176,667,554.20/69,218.30
  6. Step 6: Final answer
    x = 103,681.65

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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.