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Finding the Fourth Proportional to 302,145.90, 452,672.10 and 144,025.80

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Solution

The fourth proportional to 302,145.90, 452,672.10 and 144,025.80 is: 215,778.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,145.90 : 452,672.10 = 144,025.80 : x
  2. Step 2: Convert to fraction form
    302,145.90/452,672.10 = 144,025.80/x
  3. Step 3: Cross multiply
    302,145.90x = 452,672.10 × 144,025.80
  4. Step 4: Simplify right side
    302,145.90x = 65,196,461,340.18
  5. Step 5: Solve for x
    x = 65,196,461,340.18/302,145.90
  6. Step 6: Final answer
    x = 215,778.08

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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.