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Finding the Fourth Proportional to 358,472.50, 537,708.76 and 109,154.50

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Solution

The fourth proportional to 358,472.50, 537,708.76 and 109,154.50 is: 163,731.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,472.50 : 537,708.76 = 109,154.50 : x
  2. Step 2: Convert to fraction form
    358,472.50/537,708.76 = 109,154.50/x
  3. Step 3: Cross multiply
    358,472.50x = 537,708.76 × 109,154.50
  4. Step 4: Simplify right side
    358,472.50x = 58,693,330,843.42
  5. Step 5: Solve for x
    x = 58,693,330,843.42/358,472.50
  6. Step 6: Final answer
    x = 163,731.75

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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.