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Finding the Fourth Proportional to 152,715.65, 228,839.63 and 63,920.79

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Solution

The fourth proportional to 152,715.65, 228,839.63 and 63,920.79 is: 95,783.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,715.65 : 228,839.63 = 63,920.79 : x
  2. Step 2: Convert to fraction form
    152,715.65/228,839.63 = 63,920.79/x
  3. Step 3: Cross multiply
    152,715.65x = 228,839.63 × 63,920.79
  4. Step 4: Simplify right side
    152,715.65x = 14,627,609,613.30
  5. Step 5: Solve for x
    x = 14,627,609,613.30/152,715.65
  6. Step 6: Final answer
    x = 95,783.31

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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.