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Finding the Fourth Proportional to 118,050.80, 162,905.34 and 64,334.64

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Solution

The fourth proportional to 118,050.80, 162,905.34 and 64,334.64 is: 88,779.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,050.80 : 162,905.34 = 64,334.64 : x
  2. Step 2: Convert to fraction form
    118,050.80/162,905.34 = 64,334.64/x
  3. Step 3: Cross multiply
    118,050.80x = 162,905.34 × 64,334.64
  4. Step 4: Simplify right side
    118,050.80x = 10,480,456,402.98
  5. Step 5: Solve for x
    x = 10,480,456,402.98/118,050.80
  6. Step 6: Final answer
    x = 88,779.21

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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.