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Finding the Fourth Proportional to 144,025.80, 216,038.70 and 133,528.20

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Solution

The fourth proportional to 144,025.80, 216,038.70 and 133,528.20 is: 200,292.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,025.80 : 216,038.70 = 133,528.20 : x
  2. Step 2: Convert to fraction form
    144,025.80/216,038.70 = 133,528.20/x
  3. Step 3: Cross multiply
    144,025.80x = 216,038.70 × 133,528.20
  4. Step 4: Simplify right side
    144,025.80x = 28,847,258,741.34
  5. Step 5: Solve for x
    x = 28,847,258,741.34/144,025.80
  6. Step 6: Final answer
    x = 200,292.30

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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.