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Finding the Fourth Proportional to 223,031.88, 307,775.70 and 127,536.12

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Solution

The fourth proportional to 223,031.88, 307,775.70 and 127,536.12 is: 175,995.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,031.88 : 307,775.70 = 127,536.12 : x
  2. Step 2: Convert to fraction form
    223,031.88/307,775.70 = 127,536.12/x
  3. Step 3: Cross multiply
    223,031.88x = 307,775.70 × 127,536.12
  4. Step 4: Simplify right side
    223,031.88x = 39,252,518,608.28
  5. Step 5: Solve for x
    x = 39,252,518,608.28/223,031.88
  6. Step 6: Final answer
    x = 175,995.10

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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.