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Finding the Fourth Proportional to 113,857.70, 170,479.35 and 113,857.70

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Solution

The fourth proportional to 113,857.70, 170,479.35 and 113,857.70 is: 170,479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,857.70 : 170,479.35 = 113,857.70 : x
  2. Step 2: Convert to fraction form
    113,857.70/170,479.35 = 113,857.70/x
  3. Step 3: Cross multiply
    113,857.70x = 170,479.35 × 113,857.70
  4. Step 4: Simplify right side
    113,857.70x = 19,410,386,688.50
  5. Step 5: Solve for x
    x = 19,410,386,688.50/113,857.70
  6. Step 6: Final answer
    x = 170,479.35

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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.