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Finding the Fourth Proportional to 243,515.70, 365,309.84 and 75,021.93

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Solution

The fourth proportional to 243,515.70, 365,309.84 and 75,021.93 is: 112,544.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,515.70 : 365,309.84 = 75,021.93 : x
  2. Step 2: Convert to fraction form
    243,515.70/365,309.84 = 75,021.93/x
  3. Step 3: Cross multiply
    243,515.70x = 365,309.84 × 75,021.93
  4. Step 4: Simplify right side
    243,515.70x = 27,406,249,432.35
  5. Step 5: Solve for x
    x = 27,406,249,432.35/243,515.70
  6. Step 6: Final answer
    x = 112,544.08

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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.