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Finding the Fourth Proportional to 185,959.36, 256,622.88 and 105,402.12

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Solution

The fourth proportional to 185,959.36, 256,622.88 and 105,402.12 is: 145,454.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,959.36 : 256,622.88 = 105,402.12 : x
  2. Step 2: Convert to fraction form
    185,959.36/256,622.88 = 105,402.12/x
  3. Step 3: Cross multiply
    185,959.36x = 256,622.88 × 105,402.12
  4. Step 4: Simplify right side
    185,959.36x = 27,048,595,592.51
  5. Step 5: Solve for x
    x = 27,048,595,592.51/185,959.36
  6. Step 6: Final answer
    x = 145,454.34

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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.