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Finding the Fourth Proportional to 183,809.72, 253,639.50 and 103,218.92

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Solution

The fourth proportional to 183,809.72, 253,639.50 and 103,218.92 is: 142,432.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,809.72 : 253,639.50 = 103,218.92 : x
  2. Step 2: Convert to fraction form
    183,809.72/253,639.50 = 103,218.92/x
  3. Step 3: Cross multiply
    183,809.72x = 253,639.50 × 103,218.92
  4. Step 4: Simplify right side
    183,809.72x = 26,180,395,259.34
  5. Step 5: Solve for x
    x = 26,180,395,259.34/183,809.72
  6. Step 6: Final answer
    x = 142,432.05

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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.