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Finding the Fourth Proportional to 93,686.92, 129,289.88 and 51,248.20

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Solution

The fourth proportional to 93,686.92, 129,289.88 and 51,248.20 is: 70,723.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,686.92 : 129,289.88 = 51,248.20 : x
  2. Step 2: Convert to fraction form
    93,686.92/129,289.88 = 51,248.20/x
  3. Step 3: Cross multiply
    93,686.92x = 129,289.88 × 51,248.20
  4. Step 4: Simplify right side
    93,686.92x = 6,625,873,628.22
  5. Step 5: Solve for x
    x = 6,625,873,628.22/93,686.92
  6. Step 6: Final answer
    x = 70,723.57

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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.