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Finding the Fourth Proportional to 116,012.60, 173,630.10 and 102,015.80

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Solution

The fourth proportional to 116,012.60, 173,630.10 and 102,015.80 is: 152,681.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,012.60 : 173,630.10 = 102,015.80 : x
  2. Step 2: Convert to fraction form
    116,012.60/173,630.10 = 102,015.80/x
  3. Step 3: Cross multiply
    116,012.60x = 173,630.10 × 102,015.80
  4. Step 4: Simplify right side
    116,012.60x = 17,713,013,555.58
  5. Step 5: Solve for x
    x = 17,713,013,555.58/116,012.60
  6. Step 6: Final answer
    x = 152,681.81

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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.