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Finding the Fourth Proportional to 75,312.79, 103,932.69 and 41,320.63

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Solution

The fourth proportional to 75,312.79, 103,932.69 and 41,320.63 is: 57,023.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,312.79 : 103,932.69 = 41,320.63 : x
  2. Step 2: Convert to fraction form
    75,312.79/103,932.69 = 41,320.63/x
  3. Step 3: Cross multiply
    75,312.79x = 103,932.69 × 41,320.63
  4. Step 4: Simplify right side
    75,312.79x = 4,294,564,203.36
  5. Step 5: Solve for x
    x = 4,294,564,203.36/75,312.79
  6. Step 6: Final answer
    x = 57,023.04

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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.