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Finding the Fourth Proportional to 190,905.84, 286,357.72 and 46,809.88

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Solution

The fourth proportional to 190,905.84, 286,357.72 and 46,809.88 is: 70,214.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,905.84 : 286,357.72 = 46,809.88 : x
  2. Step 2: Convert to fraction form
    190,905.84/286,357.72 = 46,809.88/x
  3. Step 3: Cross multiply
    190,905.84x = 286,357.72 × 46,809.88
  4. Step 4: Simplify right side
    190,905.84x = 13,404,370,510.27
  5. Step 5: Solve for x
    x = 13,404,370,510.27/190,905.84
  6. Step 6: Final answer
    x = 70,214.56

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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.