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Finding the Fourth Proportional to 130,730.71, 196,096.08 and 91,364.71

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Solution

The fourth proportional to 130,730.71, 196,096.08 and 91,364.71 is: 137,047.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,730.71 : 196,096.08 = 91,364.71 : x
  2. Step 2: Convert to fraction form
    130,730.71/196,096.08 = 91,364.71/x
  3. Step 3: Cross multiply
    130,730.71x = 196,096.08 × 91,364.71
  4. Step 4: Simplify right side
    130,730.71x = 17,916,261,481.34
  5. Step 5: Solve for x
    x = 17,916,261,481.34/130,730.71
  6. Step 6: Final answer
    x = 137,047.08

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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.