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Finding the Fourth Proportional to 150,628.84, 207,885.54 and 83,565.16

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Solution

The fourth proportional to 150,628.84, 207,885.54 and 83,565.16 is: 115,329.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,628.84 : 207,885.54 = 83,565.16 : x
  2. Step 2: Convert to fraction form
    150,628.84/207,885.54 = 83,565.16/x
  3. Step 3: Cross multiply
    150,628.84x = 207,885.54 × 83,565.16
  4. Step 4: Simplify right side
    150,628.84x = 17,371,988,411.79
  5. Step 5: Solve for x
    x = 17,371,988,411.79/150,628.84
  6. Step 6: Final answer
    x = 115,329.76

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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.