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Finding the Fourth Proportional to 159,457.88, 239,051 and 70,662.98

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Solution

The fourth proportional to 159,457.88, 239,051 and 70,662.98 is: 105,934.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,457.88 : 239,051 = 70,662.98 : x
  2. Step 2: Convert to fraction form
    159,457.88/239,051 = 70,662.98/x
  3. Step 3: Cross multiply
    159,457.88x = 239,051 × 70,662.98
  4. Step 4: Simplify right side
    159,457.88x = 16,892,056,031.98
  5. Step 5: Solve for x
    x = 16,892,056,031.98/159,457.88
  6. Step 6: Final answer
    x = 105,934.28

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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.