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Finding the Fourth Proportional to 156,762.50, 216,394.25 and 109,043.54

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Solution

The fourth proportional to 156,762.50, 216,394.25 and 109,043.54 is: 150,523.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,762.50 : 216,394.25 = 109,043.54 : x
  2. Step 2: Convert to fraction form
    156,762.50/216,394.25 = 109,043.54/x
  3. Step 3: Cross multiply
    156,762.50x = 216,394.25 × 109,043.54
  4. Step 4: Simplify right side
    156,762.50x = 23,596,395,055.65
  5. Step 5: Solve for x
    x = 23,596,395,055.65/156,762.50
  6. Step 6: Final answer
    x = 150,523.21

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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.