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Finding the Fourth Proportional to 155,995.84, 215,220.84 and 127,265.44

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Solution

The fourth proportional to 155,995.84, 215,220.84 and 127,265.44 is: 175,582.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,995.84 : 215,220.84 = 127,265.44 : x
  2. Step 2: Convert to fraction form
    155,995.84/215,220.84 = 127,265.44/x
  3. Step 3: Cross multiply
    155,995.84x = 215,220.84 × 127,265.44
  4. Step 4: Simplify right side
    155,995.84x = 27,390,174,899.77
  5. Step 5: Solve for x
    x = 27,390,174,899.77/155,995.84
  6. Step 6: Final answer
    x = 175,582.73

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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.