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Finding the Fourth Proportional to 152,596.55, 210,581.06 and 84,613.65

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Solution

The fourth proportional to 152,596.55, 210,581.06 and 84,613.65 is: 116,765.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,596.55 : 210,581.06 = 84,613.65 : x
  2. Step 2: Convert to fraction form
    152,596.55/210,581.06 = 84,613.65/x
  3. Step 3: Cross multiply
    152,596.55x = 210,581.06 × 84,613.65
  4. Step 4: Simplify right side
    152,596.55x = 17,818,031,684.40
  5. Step 5: Solve for x
    x = 17,818,031,684.40/152,596.55
  6. Step 6: Final answer
    x = 116,765.63

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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.