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Finding the Fourth Proportional to 190,575.76, 285,904.92 and 57,444.88

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Solution

The fourth proportional to 190,575.76, 285,904.92 and 57,444.88 is: 86,179.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,575.76 : 285,904.92 = 57,444.88 : x
  2. Step 2: Convert to fraction form
    190,575.76/285,904.92 = 57,444.88/x
  3. Step 3: Cross multiply
    190,575.76x = 285,904.92 × 57,444.88
  4. Step 4: Simplify right side
    190,575.76x = 16,423,773,820.81
  5. Step 5: Solve for x
    x = 16,423,773,820.81/190,575.76
  6. Step 6: Final answer
    x = 86,179.76

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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.