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Finding the Fourth Proportional to 162,762.11, 244,300.98 and 78,581.64

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Solution

The fourth proportional to 162,762.11, 244,300.98 and 78,581.64 is: 117,948.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,762.11 : 244,300.98 = 78,581.64 : x
  2. Step 2: Convert to fraction form
    162,762.11/244,300.98 = 78,581.64/x
  3. Step 3: Cross multiply
    162,762.11x = 244,300.98 × 78,581.64
  4. Step 4: Simplify right side
    162,762.11x = 19,197,572,430.80
  5. Step 5: Solve for x
    x = 19,197,572,430.80/162,762.11
  6. Step 6: Final answer
    x = 117,948.66

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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.