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Finding the Fourth Proportional to 326,099.50, 489,182.76 and 112,867.06

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Solution

The fourth proportional to 326,099.50, 489,182.76 and 112,867.06 is: 169,312.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,099.50 : 489,182.76 = 112,867.06 : x
  2. Step 2: Convert to fraction form
    326,099.50/489,182.76 = 112,867.06/x
  3. Step 3: Cross multiply
    326,099.50x = 489,182.76 × 112,867.06
  4. Step 4: Simplify right side
    326,099.50x = 55,212,620,210.10
  5. Step 5: Solve for x
    x = 55,212,620,210.10/326,099.50
  6. Step 6: Final answer
    x = 169,312.19

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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.