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Finding the Fourth Proportional to 77,366.25, 116,101.22 and 28,118.25

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Solution

The fourth proportional to 77,366.25, 116,101.22 and 28,118.25 is: 42,196.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,366.25 : 116,101.22 = 28,118.25 : x
  2. Step 2: Convert to fraction form
    77,366.25/116,101.22 = 28,118.25/x
  3. Step 3: Cross multiply
    77,366.25x = 116,101.22 × 28,118.25
  4. Step 4: Simplify right side
    77,366.25x = 3,264,562,988.67
  5. Step 5: Solve for x
    x = 3,264,562,988.67/77,366.25
  6. Step 6: Final answer
    x = 42,196.22

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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.