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Finding the Fourth Proportional to 103,653.73, 143,043.17 and 57,714.01

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Solution

The fourth proportional to 103,653.73, 143,043.17 and 57,714.01 is: 79,645.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,653.73 : 143,043.17 = 57,714.01 : x
  2. Step 2: Convert to fraction form
    103,653.73/143,043.17 = 57,714.01/x
  3. Step 3: Cross multiply
    103,653.73x = 143,043.17 × 57,714.01
  4. Step 4: Simplify right side
    103,653.73x = 8,255,594,096.48
  5. Step 5: Solve for x
    x = 8,255,594,096.48/103,653.73
  6. Step 6: Final answer
    x = 79,645.90

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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.