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Finding the Fourth Proportional to 235,288.89, 353,002.59 and 85,526.82

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Solution

The fourth proportional to 235,288.89, 353,002.59 and 85,526.82 is: 128,315.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,288.89 : 353,002.59 = 85,526.82 : x
  2. Step 2: Convert to fraction form
    235,288.89/353,002.59 = 85,526.82/x
  3. Step 3: Cross multiply
    235,288.89x = 353,002.59 × 85,526.82
  4. Step 4: Simplify right side
    235,288.89x = 30,191,188,974.46
  5. Step 5: Solve for x
    x = 30,191,188,974.46/235,288.89
  6. Step 6: Final answer
    x = 128,315.40

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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.