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Finding the Fourth Proportional to 104,647.63, 144,412.98 and 56,901.01

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Solution

The fourth proportional to 104,647.63, 144,412.98 and 56,901.01 is: 78,522.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,647.63 : 144,412.98 = 56,901.01 : x
  2. Step 2: Convert to fraction form
    104,647.63/144,412.98 = 56,901.01/x
  3. Step 3: Cross multiply
    104,647.63x = 144,412.98 × 56,901.01
  4. Step 4: Simplify right side
    104,647.63x = 8,217,244,419.11
  5. Step 5: Solve for x
    x = 8,217,244,419.11/104,647.63
  6. Step 6: Final answer
    x = 78,522.99

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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.