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Finding the Fourth Proportional to 152,751.19, 210,787.11 and 92,286.10

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Solution

The fourth proportional to 152,751.19, 210,787.11 and 92,286.10 is: 127,349.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,751.19 : 210,787.11 = 92,286.10 : x
  2. Step 2: Convert to fraction form
    152,751.19/210,787.11 = 92,286.10/x
  3. Step 3: Cross multiply
    152,751.19x = 210,787.11 × 92,286.10
  4. Step 4: Simplify right side
    152,751.19x = 19,452,720,312.17
  5. Step 5: Solve for x
    x = 19,452,720,312.17/152,751.19
  6. Step 6: Final answer
    x = 127,349.06

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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.