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Finding the Fourth Proportional to 127,516.60, 190,983.30 and 65,114.20

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Solution

The fourth proportional to 127,516.60, 190,983.30 and 65,114.20 is: 97,522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,516.60 : 190,983.30 = 65,114.20 : x
  2. Step 2: Convert to fraction form
    127,516.60/190,983.30 = 65,114.20/x
  3. Step 3: Cross multiply
    127,516.60x = 190,983.30 × 65,114.20
  4. Step 4: Simplify right side
    127,516.60x = 12,435,724,792.86
  5. Step 5: Solve for x
    x = 12,435,724,792.86/127,516.60
  6. Step 6: Final answer
    x = 97,522.40

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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.