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Finding the Fourth Proportional to 253,240.40, 349,611.72 and 168,482

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Solution

The fourth proportional to 253,240.40, 349,611.72 and 168,482 is: 232,598.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,240.40 : 349,611.72 = 168,482 : x
  2. Step 2: Convert to fraction form
    253,240.40/349,611.72 = 168,482/x
  3. Step 3: Cross multiply
    253,240.40x = 349,611.72 × 168,482
  4. Step 4: Simplify right side
    253,240.40x = 58,903,281,809.04
  5. Step 5: Solve for x
    x = 58,903,281,809.04/253,240.40
  6. Step 6: Final answer
    x = 232,598.28

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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.