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Finding the Fourth Proportional to 112,025.70, 168,038.55 and 70,553.70

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Solution

The fourth proportional to 112,025.70, 168,038.55 and 70,553.70 is: 105,830.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,025.70 : 168,038.55 = 70,553.70 : x
  2. Step 2: Convert to fraction form
    112,025.70/168,038.55 = 70,553.70/x
  3. Step 3: Cross multiply
    112,025.70x = 168,038.55 × 70,553.70
  4. Step 4: Simplify right side
    112,025.70x = 11,855,741,445.14
  5. Step 5: Solve for x
    x = 11,855,741,445.14/112,025.70
  6. Step 6: Final answer
    x = 105,830.55

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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.