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Finding the Fourth Proportional to 575,964.81, 863,848.80 and 155,142.27

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Solution

The fourth proportional to 575,964.81, 863,848.80 and 155,142.27 is: 232,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,964.81 : 863,848.80 = 155,142.27 : x
  2. Step 2: Convert to fraction form
    575,964.81/863,848.80 = 155,142.27/x
  3. Step 3: Cross multiply
    575,964.81x = 863,848.80 × 155,142.27
  4. Step 4: Simplify right side
    575,964.81x = 134,019,463,768.78
  5. Step 5: Solve for x
    x = 134,019,463,768.78/575,964.81
  6. Step 6: Final answer
    x = 232,686.90

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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.