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Finding the Fourth Proportional to 252,021.40, 378,032.10 and 65,032.90

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Solution

The fourth proportional to 252,021.40, 378,032.10 and 65,032.90 is: 97,549.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,021.40 : 378,032.10 = 65,032.90 : x
  2. Step 2: Convert to fraction form
    252,021.40/378,032.10 = 65,032.90/x
  3. Step 3: Cross multiply
    252,021.40x = 378,032.10 × 65,032.90
  4. Step 4: Simplify right side
    252,021.40x = 24,584,523,756.09
  5. Step 5: Solve for x
    x = 24,584,523,756.09/252,021.40
  6. Step 6: Final answer
    x = 97,549.35

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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.