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Finding the Fourth Proportional to 185,855.60, 256,479.36 and 100,973.36

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Solution

The fourth proportional to 185,855.60, 256,479.36 and 100,973.36 is: 139,342.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,855.60 : 256,479.36 = 100,973.36 : x
  2. Step 2: Convert to fraction form
    185,855.60/256,479.36 = 100,973.36/x
  3. Step 3: Cross multiply
    185,855.60x = 256,479.36 × 100,973.36
  4. Step 4: Simplify right side
    185,855.60x = 25,897,582,749.85
  5. Step 5: Solve for x
    x = 25,897,582,749.85/185,855.60
  6. Step 6: Final answer
    x = 139,342.49

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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.