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Finding the Fourth Proportional to 104,700.48, 144,484.56 and 56,955

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Solution

The fourth proportional to 104,700.48, 144,484.56 and 56,955 is: 78,596.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,700.48 : 144,484.56 = 56,955 : x
  2. Step 2: Convert to fraction form
    104,700.48/144,484.56 = 56,955/x
  3. Step 3: Cross multiply
    104,700.48x = 144,484.56 × 56,955
  4. Step 4: Simplify right side
    104,700.48x = 8,229,118,114.80
  5. Step 5: Solve for x
    x = 8,229,118,114.80/104,700.48
  6. Step 6: Final answer
    x = 78,596.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.