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Finding the Fourth Proportional to 115,971.70, 174,015.15 and 45,853.30

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Solution

The fourth proportional to 115,971.70, 174,015.15 and 45,853.30 is: 68,802.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,971.70 : 174,015.15 = 45,853.30 : x
  2. Step 2: Convert to fraction form
    115,971.70/174,015.15 = 45,853.30/x
  3. Step 3: Cross multiply
    115,971.70x = 174,015.15 × 45,853.30
  4. Step 4: Simplify right side
    115,971.70x = 7,979,168,877.50
  5. Step 5: Solve for x
    x = 7,979,168,877.50/115,971.70
  6. Step 6: Final answer
    x = 68,802.72

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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.