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Finding the Fourth Proportional to 85,532.52, 128,320.65 and 35,596.02

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Solution

The fourth proportional to 85,532.52, 128,320.65 and 35,596.02 is: 53,403.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,532.52 : 128,320.65 = 35,596.02 : x
  2. Step 2: Convert to fraction form
    85,532.52/128,320.65 = 35,596.02/x
  3. Step 3: Cross multiply
    85,532.52x = 128,320.65 × 35,596.02
  4. Step 4: Simplify right side
    85,532.52x = 4,567,704,423.81
  5. Step 5: Solve for x
    x = 4,567,704,423.81/85,532.52
  6. Step 6: Final answer
    x = 53,403.13

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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.