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Finding the Fourth Proportional to 125,108.04, 187,496.04 and 65,985.48

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Solution

The fourth proportional to 125,108.04, 187,496.04 and 65,985.48 is: 98,890.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,108.04 : 187,496.04 = 65,985.48 : x
  2. Step 2: Convert to fraction form
    125,108.04/187,496.04 = 65,985.48/x
  3. Step 3: Cross multiply
    125,108.04x = 187,496.04 × 65,985.48
  4. Step 4: Simplify right side
    125,108.04x = 12,372,016,197.50
  5. Step 5: Solve for x
    x = 12,372,016,197.50/125,108.04
  6. Step 6: Final answer
    x = 98,890.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.