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Finding the Fourth Proportional to 330,275.49, 455,808.29 and 187,061.01

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Solution

The fourth proportional to 330,275.49, 455,808.29 and 187,061.01 is: 258,160.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,275.49 : 455,808.29 = 187,061.01 : x
  2. Step 2: Convert to fraction form
    330,275.49/455,808.29 = 187,061.01/x
  3. Step 3: Cross multiply
    330,275.49x = 455,808.29 × 187,061.01
  4. Step 4: Simplify right side
    330,275.49x = 85,263,959,093.77
  5. Step 5: Solve for x
    x = 85,263,959,093.77/330,275.49
  6. Step 6: Final answer
    x = 258,160.12

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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.