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Finding the Fourth Proportional to 186,894.06, 257,904.18 and 101,994.72

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Solution

The fourth proportional to 186,894.06, 257,904.18 and 101,994.72 is: 140,747.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,894.06 : 257,904.18 = 101,994.72 : x
  2. Step 2: Convert to fraction form
    186,894.06/257,904.18 = 101,994.72/x
  3. Step 3: Cross multiply
    186,894.06x = 257,904.18 × 101,994.72
  4. Step 4: Simplify right side
    186,894.06x = 26,304,864,625.93
  5. Step 5: Solve for x
    x = 26,304,864,625.93/186,894.06
  6. Step 6: Final answer
    x = 140,747.46

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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.