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Finding the Fourth Proportional to 113,365.10, 170,047.65 and 100,243.10

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Solution

The fourth proportional to 113,365.10, 170,047.65 and 100,243.10 is: 150,364.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,365.10 : 170,047.65 = 100,243.10 : x
  2. Step 2: Convert to fraction form
    113,365.10/170,047.65 = 100,243.10/x
  3. Step 3: Cross multiply
    113,365.10x = 170,047.65 × 100,243.10
  4. Step 4: Simplify right side
    113,365.10x = 17,046,103,583.72
  5. Step 5: Solve for x
    x = 17,046,103,583.72/113,365.10
  6. Step 6: Final answer
    x = 150,364.65

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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.