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Finding the Fourth Proportional to 116,130.40, 174,325.20 and 108,516.40

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Solution

The fourth proportional to 116,130.40, 174,325.20 and 108,516.40 is: 162,895.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,130.40 : 174,325.20 = 108,516.40 : x
  2. Step 2: Convert to fraction form
    116,130.40/174,325.20 = 108,516.40/x
  3. Step 3: Cross multiply
    116,130.40x = 174,325.20 × 108,516.40
  4. Step 4: Simplify right side
    116,130.40x = 18,917,143,133.28
  5. Step 5: Solve for x
    x = 18,917,143,133.28/116,130.40
  6. Step 6: Final answer
    x = 162,895.70

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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.