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Finding the Fourth Proportional to 358,574.40, 537,861.60 and 148,622.40

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Solution

The fourth proportional to 358,574.40, 537,861.60 and 148,622.40 is: 222,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,574.40 : 537,861.60 = 148,622.40 : x
  2. Step 2: Convert to fraction form
    358,574.40/537,861.60 = 148,622.40/x
  3. Step 3: Cross multiply
    358,574.40x = 537,861.60 × 148,622.40
  4. Step 4: Simplify right side
    358,574.40x = 79,938,281,859.84
  5. Step 5: Solve for x
    x = 79,938,281,859.84/358,574.40
  6. Step 6: Final answer
    x = 222,933.60

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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.