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Finding the Fourth Proportional to 169,518.68, 233,981.16 and 105,818.12

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Solution

The fourth proportional to 169,518.68, 233,981.16 and 105,818.12 is: 146,057.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,518.68 : 233,981.16 = 105,818.12 : x
  2. Step 2: Convert to fraction form
    169,518.68/233,981.16 = 105,818.12/x
  3. Step 3: Cross multiply
    169,518.68x = 233,981.16 × 105,818.12
  4. Step 4: Simplify right side
    169,518.68x = 24,759,446,466.62
  5. Step 5: Solve for x
    x = 24,759,446,466.62/169,518.68
  6. Step 6: Final answer
    x = 146,057.33

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1.5x scale

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.