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Finding the Fourth Proportional to 587,117.16, 881,025.66 and 213,169.32

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Solution

The fourth proportional to 587,117.16, 881,025.66 and 213,169.32 is: 319,881.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,117.16 : 881,025.66 = 213,169.32 : x
  2. Step 2: Convert to fraction form
    587,117.16/881,025.66 = 213,169.32/x
  3. Step 3: Cross multiply
    587,117.16x = 881,025.66 × 213,169.32
  4. Step 4: Simplify right side
    587,117.16x = 187,807,640,844.75
  5. Step 5: Solve for x
    x = 187,807,640,844.75/587,117.16
  6. Step 6: Final answer
    x = 319,881.03

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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.