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Finding the Fourth Proportional to 457,950.64, 686,918.40 and 125,526.64

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Solution

The fourth proportional to 457,950.64, 686,918.40 and 125,526.64 is: 188,287.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,950.64 : 686,918.40 = 125,526.64 : x
  2. Step 2: Convert to fraction form
    457,950.64/686,918.40 = 125,526.64/x
  3. Step 3: Cross multiply
    457,950.64x = 686,918.40 × 125,526.64
  4. Step 4: Simplify right side
    457,950.64x = 86,226,558,706.18
  5. Step 5: Solve for x
    x = 86,226,558,706.18/457,950.64
  6. Step 6: Final answer
    x = 188,287.89

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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.