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Finding the Fourth Proportional to 93,480.30, 129,005.46 and 51,041.52

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Solution

The fourth proportional to 93,480.30, 129,005.46 and 51,041.52 is: 70,438.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,480.30 : 129,005.46 = 51,041.52 : x
  2. Step 2: Convert to fraction form
    93,480.30/129,005.46 = 51,041.52/x
  3. Step 3: Cross multiply
    93,480.30x = 129,005.46 × 51,041.52
  4. Step 4: Simplify right side
    93,480.30x = 6,584,634,766.70
  5. Step 5: Solve for x
    x = 6,584,634,766.70/93,480.30
  6. Step 6: Final answer
    x = 70,438.74

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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.