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Finding the Fourth Proportional to 140,552.49, 210,897.99 and 65,677.81

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Solution

The fourth proportional to 140,552.49, 210,897.99 and 65,677.81 is: 98,549.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,552.49 : 210,897.99 = 65,677.81 : x
  2. Step 2: Convert to fraction form
    140,552.49/210,897.99 = 65,677.81/x
  3. Step 3: Cross multiply
    140,552.49x = 210,897.99 × 65,677.81
  4. Step 4: Simplify right side
    140,552.49x = 13,851,318,116.60
  5. Step 5: Solve for x
    x = 13,851,318,116.60/140,552.49
  6. Step 6: Final answer
    x = 98,549.08

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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.