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Finding the Fourth Proportional to 119,661.60, 165,130.51 and 65,945.23

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Solution

The fourth proportional to 119,661.60, 165,130.51 and 65,945.23 is: 91,003.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,661.60 : 165,130.51 = 65,945.23 : x
  2. Step 2: Convert to fraction form
    119,661.60/165,130.51 = 65,945.23/x
  3. Step 3: Cross multiply
    119,661.60x = 165,130.51 × 65,945.23
  4. Step 4: Simplify right side
    119,661.60x = 10,889,569,461.97
  5. Step 5: Solve for x
    x = 10,889,569,461.97/119,661.60
  6. Step 6: Final answer
    x = 91,003.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.