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Finding the Fourth Proportional to 186,258.26, 279,397.71 and 53,128.28

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Solution

The fourth proportional to 186,258.26, 279,397.71 and 53,128.28 is: 79,695.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,258.26 : 279,397.71 = 53,128.28 : x
  2. Step 2: Convert to fraction form
    186,258.26/279,397.71 = 53,128.28/x
  3. Step 3: Cross multiply
    186,258.26x = 279,397.71 × 53,128.28
  4. Step 4: Simplify right side
    186,258.26x = 14,843,918,371.25
  5. Step 5: Solve for x
    x = 14,843,918,371.25/186,258.26
  6. Step 6: Final answer
    x = 79,695.36

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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.