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Finding the Fourth Proportional to 262,124.70, 393,478.65 and 144,026.70

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Solution

The fourth proportional to 262,124.70, 393,478.65 and 144,026.70 is: 216,200.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,124.70 : 393,478.65 = 144,026.70 : x
  2. Step 2: Convert to fraction form
    262,124.70/393,478.65 = 144,026.70/x
  3. Step 3: Cross multiply
    262,124.70x = 393,478.65 × 144,026.70
  4. Step 4: Simplify right side
    262,124.70x = 56,671,431,479.96
  5. Step 5: Solve for x
    x = 56,671,431,479.96/262,124.70
  6. Step 6: Final answer
    x = 216,200.27

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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.