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Finding the Fourth Proportional to 93,490.60, 129,027.19 and 57,679.69

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Solution

The fourth proportional to 93,490.60, 129,027.19 and 57,679.69 is: 79,604.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,490.60 : 129,027.19 = 57,679.69 : x
  2. Step 2: Convert to fraction form
    93,490.60/129,027.19 = 57,679.69/x
  3. Step 3: Cross multiply
    93,490.60x = 129,027.19 × 57,679.69
  4. Step 4: Simplify right side
    93,490.60x = 7,442,248,320.77
  5. Step 5: Solve for x
    x = 7,442,248,320.77/93,490.60
  6. Step 6: Final answer
    x = 79,604.24

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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.