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Finding the Fourth Proportional to 152,366.50, 210,196 and 98,668.81

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Solution

The fourth proportional to 152,366.50, 210,196 and 98,668.81 is: 136,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,366.50 : 210,196 = 98,668.81 : x
  2. Step 2: Convert to fraction form
    152,366.50/210,196 = 98,668.81/x
  3. Step 3: Cross multiply
    152,366.50x = 210,196 × 98,668.81
  4. Step 4: Simplify right side
    152,366.50x = 20,739,789,186.76
  5. Step 5: Solve for x
    x = 20,739,789,186.76/152,366.50
  6. Step 6: Final answer
    x = 136,117.78

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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.