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Finding the Fourth Proportional to 105,060.98, 144,978.45 and 60,348.98

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Solution

The fourth proportional to 105,060.98, 144,978.45 and 60,348.98 is: 83,278.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,060.98 : 144,978.45 = 60,348.98 : x
  2. Step 2: Convert to fraction form
    105,060.98/144,978.45 = 60,348.98/x
  3. Step 3: Cross multiply
    105,060.98x = 144,978.45 × 60,348.98
  4. Step 4: Simplify right side
    105,060.98x = 8,749,301,579.48
  5. Step 5: Solve for x
    x = 8,749,301,579.48/105,060.98
  6. Step 6: Final answer
    x = 83,278.32

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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.