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Finding the Fourth Proportional to 118,065.78, 162,930.90 and 64,350.84

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Solution

The fourth proportional to 118,065.78, 162,930.90 and 64,350.84 is: 88,804.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,065.78 : 162,930.90 = 64,350.84 : x
  2. Step 2: Convert to fraction form
    118,065.78/162,930.90 = 64,350.84/x
  3. Step 3: Cross multiply
    118,065.78x = 162,930.90 × 64,350.84
  4. Step 4: Simplify right side
    118,065.78x = 10,484,740,276.96
  5. Step 5: Solve for x
    x = 10,484,740,276.96/118,065.78
  6. Step 6: Final answer
    x = 88,804.23

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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.