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Finding the Fourth Proportional to 236,681.82, 326,623.59 and 129,253.14

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Solution

The fourth proportional to 236,681.82, 326,623.59 and 129,253.14 is: 178,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,681.82 : 326,623.59 = 129,253.14 : x
  2. Step 2: Convert to fraction form
    236,681.82/326,623.59 = 129,253.14/x
  3. Step 3: Cross multiply
    236,681.82x = 326,623.59 × 129,253.14
  4. Step 4: Simplify right side
    236,681.82x = 42,217,124,605.57
  5. Step 5: Solve for x
    x = 42,217,124,605.57/236,681.82
  6. Step 6: Final answer
    x = 178,370.80

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1.5x scale

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.