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Finding the Fourth Proportional to 251,373.75, 346,859.70 and 147,946.47

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Solution

The fourth proportional to 251,373.75, 346,859.70 and 147,946.47 is: 204,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,373.75 : 346,859.70 = 147,946.47 : x
  2. Step 2: Convert to fraction form
    251,373.75/346,859.70 = 147,946.47/x
  3. Step 3: Cross multiply
    251,373.75x = 346,859.70 × 147,946.47
  4. Step 4: Simplify right side
    251,373.75x = 51,316,668,200.26
  5. Step 5: Solve for x
    x = 51,316,668,200.26/251,373.75
  6. Step 6: Final answer
    x = 204,144.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.