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Finding the Fourth Proportional to 169,489.10, 254,248.42 and 55,602.76

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Solution

The fourth proportional to 169,489.10, 254,248.42 and 55,602.76 is: 83,408.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,489.10 : 254,248.42 = 55,602.76 : x
  2. Step 2: Convert to fraction form
    169,489.10/254,248.42 = 55,602.76/x
  3. Step 3: Cross multiply
    169,489.10x = 254,248.42 × 55,602.76
  4. Step 4: Simplify right side
    169,489.10x = 14,136,913,877.64
  5. Step 5: Solve for x
    x = 14,136,913,877.64/169,489.10
  6. Step 6: Final answer
    x = 83,408.99

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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.