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Finding the Fourth Proportional to 131,655.64, 196,471.07 and 117,658.84

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Solution

The fourth proportional to 131,655.64, 196,471.07 and 117,658.84 is: 175,583.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,655.64 : 196,471.07 = 117,658.84 : x
  2. Step 2: Convert to fraction form
    131,655.64/196,471.07 = 117,658.84/x
  3. Step 3: Cross multiply
    131,655.64x = 196,471.07 × 117,658.84
  4. Step 4: Simplify right side
    131,655.64x = 23,116,558,189.76
  5. Step 5: Solve for x
    x = 23,116,558,189.76/131,655.64
  6. Step 6: Final answer
    x = 175,583.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.