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Finding the Fourth Proportional to 104,607.45, 144,356.58 and 56,862

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Solution

The fourth proportional to 104,607.45, 144,356.58 and 56,862 is: 78,468.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,607.45 : 144,356.58 = 56,862 : x
  2. Step 2: Convert to fraction form
    104,607.45/144,356.58 = 56,862/x
  3. Step 3: Cross multiply
    104,607.45x = 144,356.58 × 56,862
  4. Step 4: Simplify right side
    104,607.45x = 8,208,403,851.96
  5. Step 5: Solve for x
    x = 8,208,403,851.96/104,607.45
  6. Step 6: Final answer
    x = 78,468.64

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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.