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Finding the Fourth Proportional to 105,656.94, 145,799.16 and 60,337.44

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Solution

The fourth proportional to 105,656.94, 145,799.16 and 60,337.44 is: 83,261.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,656.94 : 145,799.16 = 60,337.44 : x
  2. Step 2: Convert to fraction form
    105,656.94/145,799.16 = 60,337.44/x
  3. Step 3: Cross multiply
    105,656.94x = 145,799.16 × 60,337.44
  4. Step 4: Simplify right side
    105,656.94x = 8,797,148,068.55
  5. Step 5: Solve for x
    x = 8,797,148,068.55/105,656.94
  6. Step 6: Final answer
    x = 83,261.43

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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.