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Finding the Fourth Proportional to 157,472.91, 236,307.33 and 63,978.66

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Solution

The fourth proportional to 157,472.91, 236,307.33 and 63,978.66 is: 96,007.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,472.91 : 236,307.33 = 63,978.66 : x
  2. Step 2: Convert to fraction form
    157,472.91/236,307.33 = 63,978.66/x
  3. Step 3: Cross multiply
    157,472.91x = 236,307.33 × 63,978.66
  4. Step 4: Simplify right side
    157,472.91x = 15,118,626,986.19
  5. Step 5: Solve for x
    x = 15,118,626,986.19/157,472.91
  6. Step 6: Final answer
    x = 96,007.79

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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.