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Finding the Fourth Proportional to 169,818, 254,376.90 and 99,484.08

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Solution

The fourth proportional to 169,818, 254,376.90 and 99,484.08 is: 149,021.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,818 : 254,376.90 = 99,484.08 : x
  2. Step 2: Convert to fraction form
    169,818/254,376.90 = 99,484.08/x
  3. Step 3: Cross multiply
    169,818x = 254,376.90 × 99,484.08
  4. Step 4: Simplify right side
    169,818x = 25,306,451,869.75
  5. Step 5: Solve for x
    x = 25,306,451,869.75/169,818
  6. Step 6: Final answer
    x = 149,021.02

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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.