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Finding the Fourth Proportional to 235,349.46, 352,913.31 and 85,484.07

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Solution

The fourth proportional to 235,349.46, 352,913.31 and 85,484.07 is: 128,185.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,349.46 : 352,913.31 = 85,484.07 : x
  2. Step 2: Convert to fraction form
    235,349.46/352,913.31 = 85,484.07/x
  3. Step 3: Cross multiply
    235,349.46x = 352,913.31 × 85,484.07
  4. Step 4: Simplify right side
    235,349.46x = 30,168,466,095.97
  5. Step 5: Solve for x
    x = 30,168,466,095.97/235,349.46
  6. Step 6: Final answer
    x = 128,185.83

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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.