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Finding the Fourth Proportional to 163,543.60, 245,331.60 and 56,911.15

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Solution

The fourth proportional to 163,543.60, 245,331.60 and 56,911.15 is: 85,372.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,543.60 : 245,331.60 = 56,911.15 : x
  2. Step 2: Convert to fraction form
    163,543.60/245,331.60 = 56,911.15/x
  3. Step 3: Cross multiply
    163,543.60x = 245,331.60 × 56,911.15
  4. Step 4: Simplify right side
    163,543.60x = 13,962,103,487.34
  5. Step 5: Solve for x
    x = 13,962,103,487.34/163,543.60
  6. Step 6: Final answer
    x = 85,372.36

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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.