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Finding the Fourth Proportional to 152,849.04, 210,951.04 and 85,781.04

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Solution

The fourth proportional to 152,849.04, 210,951.04 and 85,781.04 is: 118,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,849.04 : 210,951.04 = 85,781.04 : x
  2. Step 2: Convert to fraction form
    152,849.04/210,951.04 = 85,781.04/x
  3. Step 3: Cross multiply
    152,849.04x = 210,951.04 × 85,781.04
  4. Step 4: Simplify right side
    152,849.04x = 18,095,599,600.28
  5. Step 5: Solve for x
    x = 18,095,599,600.28/152,849.04
  6. Step 6: Final answer
    x = 118,388.70

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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.