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Finding the Fourth Proportional to 157,526.15, 236,227.80 and 68,719.10

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Solution

The fourth proportional to 157,526.15, 236,227.80 and 68,719.10 is: 103,051.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,526.15 : 236,227.80 = 68,719.10 : x
  2. Step 2: Convert to fraction form
    157,526.15/236,227.80 = 68,719.10/x
  3. Step 3: Cross multiply
    157,526.15x = 236,227.80 × 68,719.10
  4. Step 4: Simplify right side
    157,526.15x = 16,233,361,810.98
  5. Step 5: Solve for x
    x = 16,233,361,810.98/157,526.15
  6. Step 6: Final answer
    x = 103,051.85

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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.