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Finding the Fourth Proportional to 85,952.80, 128,929.20 and 62,333.20

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Solution

The fourth proportional to 85,952.80, 128,929.20 and 62,333.20 is: 93,499.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,952.80 : 128,929.20 = 62,333.20 : x
  2. Step 2: Convert to fraction form
    85,952.80/128,929.20 = 62,333.20/x
  3. Step 3: Cross multiply
    85,952.80x = 128,929.20 × 62,333.20
  4. Step 4: Simplify right side
    85,952.80x = 8,036,569,609.44
  5. Step 5: Solve for x
    x = 8,036,569,609.44/85,952.80
  6. Step 6: Final answer
    x = 93,499.80

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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.