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Finding the Fourth Proportional to 185,655.54, 278,275.95 and 170,709.42

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Solution

The fourth proportional to 185,655.54, 278,275.95 and 170,709.42 is: 255,873.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,655.54 : 278,275.95 = 170,709.42 : x
  2. Step 2: Convert to fraction form
    185,655.54/278,275.95 = 170,709.42/x
  3. Step 3: Cross multiply
    185,655.54x = 278,275.95 × 170,709.42
  4. Step 4: Simplify right side
    185,655.54x = 47,504,326,024.45
  5. Step 5: Solve for x
    x = 47,504,326,024.45/185,655.54
  6. Step 6: Final answer
    x = 255,873.46

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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.