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Finding the Fourth Proportional to 326,060.08, 489,090.84 and 89,406.16

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Solution

The fourth proportional to 326,060.08, 489,090.84 and 89,406.16 is: 134,109.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,060.08 : 489,090.84 = 89,406.16 : x
  2. Step 2: Convert to fraction form
    326,060.08/489,090.84 = 89,406.16/x
  3. Step 3: Cross multiply
    326,060.08x = 489,090.84 × 89,406.16
  4. Step 4: Simplify right side
    326,060.08x = 43,727,733,895.57
  5. Step 5: Solve for x
    x = 43,727,733,895.57/326,060.08
  6. Step 6: Final answer
    x = 134,109.44

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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.