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Finding the Fourth Proportional to 152,668.50, 210,682.62 and 93,052.50

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Solution

The fourth proportional to 152,668.50, 210,682.62 and 93,052.50 is: 128,412.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,668.50 : 210,682.62 = 93,052.50 : x
  2. Step 2: Convert to fraction form
    152,668.50/210,682.62 = 93,052.50/x
  3. Step 3: Cross multiply
    152,668.50x = 210,682.62 × 93,052.50
  4. Step 4: Simplify right side
    152,668.50x = 19,604,544,497.55
  5. Step 5: Solve for x
    x = 19,604,544,497.55/152,668.50
  6. Step 6: Final answer
    x = 128,412.50

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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.