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Finding the Fourth Proportional to 186,995.34, 257,748.75 and 130,308.30

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Solution

The fourth proportional to 186,995.34, 257,748.75 and 130,308.30 is: 179,613.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,995.34 : 257,748.75 = 130,308.30 : x
  2. Step 2: Convert to fraction form
    186,995.34/257,748.75 = 130,308.30/x
  3. Step 3: Cross multiply
    186,995.34x = 257,748.75 × 130,308.30
  4. Step 4: Simplify right side
    186,995.34x = 33,586,801,439.63
  5. Step 5: Solve for x
    x = 33,586,801,439.63/186,995.34
  6. Step 6: Final answer
    x = 179,613.04

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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.