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Finding the Fourth Proportional to 302,750.60, 453,737.10 and 144,638.60

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Solution

The fourth proportional to 302,750.60, 453,737.10 and 144,638.60 is: 216,772.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,750.60 : 453,737.10 = 144,638.60 : x
  2. Step 2: Convert to fraction form
    302,750.60/453,737.10 = 144,638.60/x
  3. Step 3: Cross multiply
    302,750.60x = 453,737.10 × 144,638.60
  4. Step 4: Simplify right side
    302,750.60x = 65,627,898,912.06
  5. Step 5: Solve for x
    x = 65,627,898,912.06/302,750.60
  6. Step 6: Final answer
    x = 216,772.15

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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.