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Finding the Fourth Proportional to 93,346.80, 140,020.20 and 51,210.60

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Solution

The fourth proportional to 93,346.80, 140,020.20 and 51,210.60 is: 76,815.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,346.80 : 140,020.20 = 51,210.60 : x
  2. Step 2: Convert to fraction form
    93,346.80/140,020.20 = 51,210.60/x
  3. Step 3: Cross multiply
    93,346.80x = 140,020.20 × 51,210.60
  4. Step 4: Simplify right side
    93,346.80x = 7,170,518,454.12
  5. Step 5: Solve for x
    x = 7,170,518,454.12/93,346.80
  6. Step 6: Final answer
    x = 76,815.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.