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Finding the Fourth Proportional to 104,296.67, 143,929.27 and 56,549.94

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Solution

The fourth proportional to 104,296.67, 143,929.27 and 56,549.94 is: 78,038.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,296.67 : 143,929.27 = 56,549.94 : x
  2. Step 2: Convert to fraction form
    104,296.67/143,929.27 = 56,549.94/x
  3. Step 3: Cross multiply
    104,296.67x = 143,929.27 × 56,549.94
  4. Step 4: Simplify right side
    104,296.67x = 8,139,191,582.74
  5. Step 5: Solve for x
    x = 8,139,191,582.74/104,296.67
  6. Step 6: Final answer
    x = 78,038.84

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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.