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Finding the Fourth Proportional to 268,503.92, 370,559 and 147,666.48

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Solution

The fourth proportional to 268,503.92, 370,559 and 147,666.48 is: 203,792.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,503.92 : 370,559 = 147,666.48 : x
  2. Step 2: Convert to fraction form
    268,503.92/370,559 = 147,666.48/x
  3. Step 3: Cross multiply
    268,503.92x = 370,559 × 147,666.48
  4. Step 4: Simplify right side
    268,503.92x = 54,719,143,162.32
  5. Step 5: Solve for x
    x = 54,719,143,162.32/268,503.92
  6. Step 6: Final answer
    x = 203,792.72

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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.