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Finding the Fourth Proportional to 104,374.86, 144,038.30 and 56,628.60

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Solution

The fourth proportional to 104,374.86, 144,038.30 and 56,628.60 is: 78,148.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,374.86 : 144,038.30 = 56,628.60 : x
  2. Step 2: Convert to fraction form
    104,374.86/144,038.30 = 56,628.60/x
  3. Step 3: Cross multiply
    104,374.86x = 144,038.30 × 56,628.60
  4. Step 4: Simplify right side
    104,374.86x = 8,156,686,992.24
  5. Step 5: Solve for x
    x = 8,156,686,992.24/104,374.86
  6. Step 6: Final answer
    x = 78,148.00

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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.