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Finding the Fourth Proportional to 619,281, 929,077.62 and 176,049

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Solution

The fourth proportional to 619,281, 929,077.62 and 176,049 is: 264,117.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,281 : 929,077.62 = 176,049 : x
  2. Step 2: Convert to fraction form
    619,281/929,077.62 = 176,049/x
  3. Step 3: Cross multiply
    619,281x = 929,077.62 × 176,049
  4. Step 4: Simplify right side
    619,281x = 163,563,185,923.38
  5. Step 5: Solve for x
    x = 163,563,185,923.38/619,281
  6. Step 6: Final answer
    x = 264,117.88

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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.