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Finding the Fourth Proportional to 170,653.60, 255,634.80 and 118,122.40

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Solution

The fourth proportional to 170,653.60, 255,634.80 and 118,122.40 is: 176,944.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,653.60 : 255,634.80 = 118,122.40 : x
  2. Step 2: Convert to fraction form
    170,653.60/255,634.80 = 118,122.40/x
  3. Step 3: Cross multiply
    170,653.60x = 255,634.80 × 118,122.40
  4. Step 4: Simplify right side
    170,653.60x = 30,196,196,099.52
  5. Step 5: Solve for x
    x = 30,196,196,099.52/170,653.60
  6. Step 6: Final answer
    x = 176,944.38

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1.5x scale

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.