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Finding the Fourth Proportional to 185,628.09, 256,159.01 and 105,060.07

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Solution

The fourth proportional to 185,628.09, 256,159.01 and 105,060.07 is: 144,978.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,628.09 : 256,159.01 = 105,060.07 : x
  2. Step 2: Convert to fraction form
    185,628.09/256,159.01 = 105,060.07/x
  3. Step 3: Cross multiply
    185,628.09x = 256,159.01 × 105,060.07
  4. Step 4: Simplify right side
    185,628.09x = 26,912,084,104.58
  5. Step 5: Solve for x
    x = 26,912,084,104.58/185,628.09
  6. Step 6: Final answer
    x = 144,978.51

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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.