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Finding the Fourth Proportional to 93,493.60, 129,031.32 and 57,682.68

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Solution

The fourth proportional to 93,493.60, 129,031.32 and 57,682.68 is: 79,608.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,493.60 : 129,031.32 = 57,682.68 : x
  2. Step 2: Convert to fraction form
    93,493.60/129,031.32 = 57,682.68/x
  3. Step 3: Cross multiply
    93,493.60x = 129,031.32 × 57,682.68
  4. Step 4: Simplify right side
    93,493.60x = 7,442,872,341.54
  5. Step 5: Solve for x
    x = 7,442,872,341.54/93,493.60
  6. Step 6: Final answer
    x = 79,608.36

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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.