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Finding the Fourth Proportional to 150,089.28, 207,007.80 and 104,752.80

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Solution

The fourth proportional to 150,089.28, 207,007.80 and 104,752.80 is: 144,478.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,089.28 : 207,007.80 = 104,752.80 : x
  2. Step 2: Convert to fraction form
    150,089.28/207,007.80 = 104,752.80/x
  3. Step 3: Cross multiply
    150,089.28x = 207,007.80 × 104,752.80
  4. Step 4: Simplify right side
    150,089.28x = 21,684,646,671.84
  5. Step 5: Solve for x
    x = 21,684,646,671.84/150,089.28
  6. Step 6: Final answer
    x = 144,478.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.