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Finding the Fourth Proportional to 81,860.90, 112,966.97 and 46,050.90

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Solution

The fourth proportional to 81,860.90, 112,966.97 and 46,050.90 is: 63,549.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,860.90 : 112,966.97 = 46,050.90 : x
  2. Step 2: Convert to fraction form
    81,860.90/112,966.97 = 46,050.90/x
  3. Step 3: Cross multiply
    81,860.90x = 112,966.97 × 46,050.90
  4. Step 4: Simplify right side
    81,860.90x = 5,202,230,408.52
  5. Step 5: Solve for x
    x = 5,202,230,408.52/81,860.90
  6. Step 6: Final answer
    x = 63,549.64

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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.