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Finding the Fourth Proportional to 56,898.45, 85,350.51 and 19,457.01

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Solution

The fourth proportional to 56,898.45, 85,350.51 and 19,457.01 is: 29,186.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,898.45 : 85,350.51 = 19,457.01 : x
  2. Step 2: Convert to fraction form
    56,898.45/85,350.51 = 19,457.01/x
  3. Step 3: Cross multiply
    56,898.45x = 85,350.51 × 19,457.01
  4. Step 4: Simplify right side
    56,898.45x = 1,660,665,726.58
  5. Step 5: Solve for x
    x = 1,660,665,726.58/56,898.45
  6. Step 6: Final answer
    x = 29,186.48

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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.