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Finding the Fourth Proportional to 117,629.80, 176,444.70 and 65,141.80

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Solution

The fourth proportional to 117,629.80, 176,444.70 and 65,141.80 is: 97,712.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,629.80 : 176,444.70 = 65,141.80 : x
  2. Step 2: Convert to fraction form
    117,629.80/176,444.70 = 65,141.80/x
  3. Step 3: Cross multiply
    117,629.80x = 176,444.70 × 65,141.80
  4. Step 4: Simplify right side
    117,629.80x = 11,493,925,358.46
  5. Step 5: Solve for x
    x = 11,493,925,358.46/117,629.80
  6. Step 6: Final answer
    x = 97,712.70

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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.