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Finding the Fourth Proportional to 75,309.57, 103,926.35 and 43,477.79

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Solution

The fourth proportional to 75,309.57, 103,926.35 and 43,477.79 is: 59,998.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,309.57 : 103,926.35 = 43,477.79 : x
  2. Step 2: Convert to fraction form
    75,309.57/103,926.35 = 43,477.79/x
  3. Step 3: Cross multiply
    75,309.57x = 103,926.35 × 43,477.79
  4. Step 4: Simplify right side
    75,309.57x = 4,518,487,963.26
  5. Step 5: Solve for x
    x = 4,518,487,963.26/75,309.57
  6. Step 6: Final answer
    x = 59,998.85

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1.5x scale

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.