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Finding the Fourth Proportional to 72,328.22, 99,824.76 and 43,254.68

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Solution

The fourth proportional to 72,328.22, 99,824.76 and 43,254.68 is: 59,698.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,328.22 : 99,824.76 = 43,254.68 : x
  2. Step 2: Convert to fraction form
    72,328.22/99,824.76 = 43,254.68/x
  3. Step 3: Cross multiply
    72,328.22x = 99,824.76 × 43,254.68
  4. Step 4: Simplify right side
    72,328.22x = 4,317,888,461.64
  5. Step 5: Solve for x
    x = 4,317,888,461.64/72,328.22
  6. Step 6: Final answer
    x = 59,698.53

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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.