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Finding the Fourth Proportional to 92,221.10, 129,284.50 and 92,221.10

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Solution

The fourth proportional to 92,221.10, 129,284.50 and 92,221.10 is: 129,284.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,221.10 : 129,284.50 = 92,221.10 : x
  2. Step 2: Convert to fraction form
    92,221.10/129,284.50 = 92,221.10/x
  3. Step 3: Cross multiply
    92,221.10x = 129,284.50 × 92,221.10
  4. Step 4: Simplify right side
    92,221.10x = 11,922,758,802.95
  5. Step 5: Solve for x
    x = 11,922,758,802.95/92,221.10
  6. Step 6: Final answer
    x = 129,284.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.