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Finding the Fourth Proportional to 112,053.40, 156,991.40 and 112,053.40

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Solution

The fourth proportional to 112,053.40, 156,991.40 and 112,053.40 is: 156,991.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,053.40 : 156,991.40 = 112,053.40 : x
  2. Step 2: Convert to fraction form
    112,053.40/156,991.40 = 112,053.40/x
  3. Step 3: Cross multiply
    112,053.40x = 156,991.40 × 112,053.40
  4. Step 4: Simplify right side
    112,053.40x = 17,591,420,140.76
  5. Step 5: Solve for x
    x = 17,591,420,140.76/112,053.40
  6. Step 6: Final answer
    x = 156,991.40

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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.