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Finding the Fourth Proportional to 192,535.20, 288,802.80 and 99,223.20

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Solution

The fourth proportional to 192,535.20, 288,802.80 and 99,223.20 is: 148,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,535.20 : 288,802.80 = 99,223.20 : x
  2. Step 2: Convert to fraction form
    192,535.20/288,802.80 = 99,223.20/x
  3. Step 3: Cross multiply
    192,535.20x = 288,802.80 × 99,223.20
  4. Step 4: Simplify right side
    192,535.20x = 28,655,937,984.96
  5. Step 5: Solve for x
    x = 28,655,937,984.96/192,535.20
  6. Step 6: Final answer
    x = 148,834.80

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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.