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Finding the Fourth Proportional to 112,366.55, 168,549.83 and 67,970.45

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Solution

The fourth proportional to 112,366.55, 168,549.83 and 67,970.45 is: 101,955.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,366.55 : 168,549.83 = 67,970.45 : x
  2. Step 2: Convert to fraction form
    112,366.55/168,549.83 = 67,970.45/x
  3. Step 3: Cross multiply
    112,366.55x = 168,549.83 × 67,970.45
  4. Step 4: Simplify right side
    112,366.55x = 11,456,407,452.67
  5. Step 5: Solve for x
    x = 11,456,407,452.67/112,366.55
  6. Step 6: Final answer
    x = 101,955.68

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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.