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Finding the Fourth Proportional to 358,364.80, 537,316.80 and 148,086.40

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Solution

The fourth proportional to 358,364.80, 537,316.80 and 148,086.40 is: 222,034.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,364.80 : 537,316.80 = 148,086.40 : x
  2. Step 2: Convert to fraction form
    358,364.80/537,316.80 = 148,086.40/x
  3. Step 3: Cross multiply
    358,364.80x = 537,316.80 × 148,086.40
  4. Step 4: Simplify right side
    358,364.80x = 79,569,310,571.52
  5. Step 5: Solve for x
    x = 79,569,310,571.52/358,364.80
  6. Step 6: Final answer
    x = 222,034.39

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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.