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Finding the Fourth Proportional to 82,860.70, 124,291.05 and 82,860.70

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Solution

The fourth proportional to 82,860.70, 124,291.05 and 82,860.70 is: 124,291.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,860.70 : 124,291.05 = 82,860.70 : x
  2. Step 2: Convert to fraction form
    82,860.70/124,291.05 = 82,860.70/x
  3. Step 3: Cross multiply
    82,860.70x = 124,291.05 × 82,860.70
  4. Step 4: Simplify right side
    82,860.70x = 10,298,843,406.74
  5. Step 5: Solve for x
    x = 10,298,843,406.74/82,860.70
  6. Step 6: Final answer
    x = 124,291.05

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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.