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Finding the Fourth Proportional to 255,507.71, 383,262.98 and 65,955.13

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Solution

The fourth proportional to 255,507.71, 383,262.98 and 65,955.13 is: 98,933.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,507.71 : 383,262.98 = 65,955.13 : x
  2. Step 2: Convert to fraction form
    255,507.71/383,262.98 = 65,955.13/x
  3. Step 3: Cross multiply
    255,507.71x = 383,262.98 × 65,955.13
  4. Step 4: Simplify right side
    255,507.71x = 25,278,158,382.15
  5. Step 5: Solve for x
    x = 25,278,158,382.15/255,507.71
  6. Step 6: Final answer
    x = 98,933.06

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1.5x scale

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.