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Finding the Fourth Proportional to 113,353.20, 170,029.80 and 103,244.40

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Solution

The fourth proportional to 113,353.20, 170,029.80 and 103,244.40 is: 154,866.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,353.20 : 170,029.80 = 103,244.40 : x
  2. Step 2: Convert to fraction form
    113,353.20/170,029.80 = 103,244.40/x
  3. Step 3: Cross multiply
    113,353.20x = 170,029.80 × 103,244.40
  4. Step 4: Simplify right side
    113,353.20x = 17,554,624,683.12
  5. Step 5: Solve for x
    x = 17,554,624,683.12/113,353.20
  6. Step 6: Final answer
    x = 154,866.60

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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.