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Finding the Fourth Proportional to 104,807.52, 144,629.55 and 57,060.72

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Solution

The fourth proportional to 104,807.52, 144,629.55 and 57,060.72 is: 78,741.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,807.52 : 144,629.55 = 57,060.72 : x
  2. Step 2: Convert to fraction form
    104,807.52/144,629.55 = 57,060.72/x
  3. Step 3: Cross multiply
    104,807.52x = 144,629.55 × 57,060.72
  4. Step 4: Simplify right side
    104,807.52x = 8,252,666,256.28
  5. Step 5: Solve for x
    x = 8,252,666,256.28/104,807.52
  6. Step 6: Final answer
    x = 78,741.17

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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.