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Finding the Fourth Proportional to 316,088.28, 436,193.34 and 187,033.44

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Solution

The fourth proportional to 316,088.28, 436,193.34 and 187,033.44 is: 258,101.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,088.28 : 436,193.34 = 187,033.44 : x
  2. Step 2: Convert to fraction form
    316,088.28/436,193.34 = 187,033.44/x
  3. Step 3: Cross multiply
    316,088.28x = 436,193.34 × 187,033.44
  4. Step 4: Simplify right side
    316,088.28x = 81,582,740,885.29
  5. Step 5: Solve for x
    x = 81,582,740,885.29/316,088.28
  6. Step 6: Final answer
    x = 258,101.13

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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.