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Finding the Fourth Proportional to 191,552.80, 286,940.40 and 108,349.60

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Solution

The fourth proportional to 191,552.80, 286,940.40 and 108,349.60 is: 162,304.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,552.80 : 286,940.40 = 108,349.60 : x
  2. Step 2: Convert to fraction form
    191,552.80/286,940.40 = 108,349.60/x
  3. Step 3: Cross multiply
    191,552.80x = 286,940.40 × 108,349.60
  4. Step 4: Simplify right side
    191,552.80x = 31,089,877,563.84
  5. Step 5: Solve for x
    x = 31,089,877,563.84/191,552.80
  6. Step 6: Final answer
    x = 162,304.48

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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.