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Finding the Fourth Proportional to 355,117.80, 532,223.10 and 144,517.80

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Solution

The fourth proportional to 355,117.80, 532,223.10 and 144,517.80 is: 216,592.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,117.80 : 532,223.10 = 144,517.80 : x
  2. Step 2: Convert to fraction form
    355,117.80/532,223.10 = 144,517.80/x
  3. Step 3: Cross multiply
    355,117.80x = 532,223.10 × 144,517.80
  4. Step 4: Simplify right side
    355,117.80x = 76,915,711,521.18
  5. Step 5: Solve for x
    x = 76,915,711,521.18/355,117.80
  6. Step 6: Final answer
    x = 216,592.10

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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.