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Finding the Fourth Proportional to 236,114.10, 354,171.15 and 156,971.70

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Solution

The fourth proportional to 236,114.10, 354,171.15 and 156,971.70 is: 235,457.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,114.10 : 354,171.15 = 156,971.70 : x
  2. Step 2: Convert to fraction form
    236,114.10/354,171.15 = 156,971.70/x
  3. Step 3: Cross multiply
    236,114.10x = 354,171.15 × 156,971.70
  4. Step 4: Simplify right side
    236,114.10x = 55,594,847,506.46
  5. Step 5: Solve for x
    x = 55,594,847,506.46/236,114.10
  6. Step 6: Final answer
    x = 235,457.55

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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.