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Finding the Fourth Proportional to 185,653.51, 256,203.15 and 100,770.56

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Solution

The fourth proportional to 185,653.51, 256,203.15 and 100,770.56 is: 139,064.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,653.51 : 256,203.15 = 100,770.56 : x
  2. Step 2: Convert to fraction form
    185,653.51/256,203.15 = 100,770.56/x
  3. Step 3: Cross multiply
    185,653.51x = 256,203.15 × 100,770.56
  4. Step 4: Simplify right side
    185,653.51x = 25,817,734,899.26
  5. Step 5: Solve for x
    x = 25,817,734,899.26/185,653.51
  6. Step 6: Final answer
    x = 139,064.08

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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.