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Finding the Fourth Proportional to 268,338.48, 370,315.98 and 147,484.08

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Solution

The fourth proportional to 268,338.48, 370,315.98 and 147,484.08 is: 203,532.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,338.48 : 370,315.98 = 147,484.08 : x
  2. Step 2: Convert to fraction form
    268,338.48/370,315.98 = 147,484.08/x
  3. Step 3: Cross multiply
    268,338.48x = 370,315.98 × 147,484.08
  4. Step 4: Simplify right side
    268,338.48x = 54,615,711,619.60
  5. Step 5: Solve for x
    x = 54,615,711,619.60/268,338.48
  6. Step 6: Final answer
    x = 203,532.91

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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.