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Finding the Fourth Proportional to 235,410.62, 324,870.35 and 127,981.06

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Solution

The fourth proportional to 235,410.62, 324,870.35 and 127,981.06 is: 176,615.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,410.62 : 324,870.35 = 127,981.06 : x
  2. Step 2: Convert to fraction form
    235,410.62/324,870.35 = 127,981.06/x
  3. Step 3: Cross multiply
    235,410.62x = 324,870.35 × 127,981.06
  4. Step 4: Simplify right side
    235,410.62x = 41,577,250,303.49
  5. Step 5: Solve for x
    x = 41,577,250,303.49/235,410.62
  6. Step 6: Final answer
    x = 176,615.87

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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.