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Finding the Fourth Proportional to 104,521, 144,238.98 and 57,417

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Solution

The fourth proportional to 104,521, 144,238.98 and 57,417 is: 79,235.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,521 : 144,238.98 = 57,417 : x
  2. Step 2: Convert to fraction form
    104,521/144,238.98 = 57,417/x
  3. Step 3: Cross multiply
    104,521x = 144,238.98 × 57,417
  4. Step 4: Simplify right side
    104,521x = 8,281,769,514.66
  5. Step 5: Solve for x
    x = 8,281,769,514.66/104,521
  6. Step 6: Final answer
    x = 79,235.46

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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.