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Finding the Fourth Proportional to 238,248.70, 328,718.96 and 136,253.08

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Solution

The fourth proportional to 238,248.70, 328,718.96 and 136,253.08 is: 187,992.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,248.70 : 328,718.96 = 136,253.08 : x
  2. Step 2: Convert to fraction form
    238,248.70/328,718.96 = 136,253.08/x
  3. Step 3: Cross multiply
    238,248.70x = 328,718.96 × 136,253.08
  4. Step 4: Simplify right side
    238,248.70x = 44,788,970,754.40
  5. Step 5: Solve for x
    x = 44,788,970,754.40/238,248.70
  6. Step 6: Final answer
    x = 187,992.51

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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.