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Finding the Fourth Proportional to 147,338.40, 221,007.36 and 36,530.40

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Solution

The fourth proportional to 147,338.40, 221,007.36 and 36,530.40 is: 54,795.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,338.40 : 221,007.36 = 36,530.40 : x
  2. Step 2: Convert to fraction form
    147,338.40/221,007.36 = 36,530.40/x
  3. Step 3: Cross multiply
    147,338.40x = 221,007.36 × 36,530.40
  4. Step 4: Simplify right side
    147,338.40x = 8,073,487,263.74
  5. Step 5: Solve for x
    x = 8,073,487,263.74/147,338.40
  6. Step 6: Final answer
    x = 54,795.54

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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.