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Finding the Fourth Proportional to 114,445.30, 171,808.35 and 72,325.30

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Solution

The fourth proportional to 114,445.30, 171,808.35 and 72,325.30 is: 108,576.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,445.30 : 171,808.35 = 72,325.30 : x
  2. Step 2: Convert to fraction form
    114,445.30/171,808.35 = 72,325.30/x
  3. Step 3: Cross multiply
    114,445.30x = 171,808.35 × 72,325.30
  4. Step 4: Simplify right side
    114,445.30x = 12,426,090,456.26
  5. Step 5: Solve for x
    x = 12,426,090,456.26/114,445.30
  6. Step 6: Final answer
    x = 108,576.68

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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.