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Finding the Fourth Proportional to 190,868.80, 286,303.20 and 173,372.80

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Solution

The fourth proportional to 190,868.80, 286,303.20 and 173,372.80 is: 260,059.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,868.80 : 286,303.20 = 173,372.80 : x
  2. Step 2: Convert to fraction form
    190,868.80/286,303.20 = 173,372.80/x
  3. Step 3: Cross multiply
    190,868.80x = 286,303.20 × 173,372.80
  4. Step 4: Simplify right side
    190,868.80x = 49,637,187,432.96
  5. Step 5: Solve for x
    x = 49,637,187,432.96/190,868.80
  6. Step 6: Final answer
    x = 260,059.20

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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.