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Finding the Fourth Proportional to 339,875.40, 469,040.08 and 186,925.42

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Solution

The fourth proportional to 339,875.40, 469,040.08 and 186,925.42 is: 257,963.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,875.40 : 469,040.08 = 186,925.42 : x
  2. Step 2: Convert to fraction form
    339,875.40/469,040.08 = 186,925.42/x
  3. Step 3: Cross multiply
    339,875.40x = 469,040.08 × 186,925.42
  4. Step 4: Simplify right side
    339,875.40x = 87,675,513,950.83
  5. Step 5: Solve for x
    x = 87,675,513,950.83/339,875.40
  6. Step 6: Final answer
    x = 257,963.69

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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.