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Finding the Fourth Proportional to 152,698.68, 210,926.22 and 127,288.20

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Solution

The fourth proportional to 152,698.68, 210,926.22 and 127,288.20 is: 175,826.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,698.68 : 210,926.22 = 127,288.20 : x
  2. Step 2: Convert to fraction form
    152,698.68/210,926.22 = 127,288.20/x
  3. Step 3: Cross multiply
    152,698.68x = 210,926.22 × 127,288.20
  4. Step 4: Simplify right side
    152,698.68x = 26,848,418,876.60
  5. Step 5: Solve for x
    x = 26,848,418,876.60/152,698.68
  6. Step 6: Final answer
    x = 175,826.14

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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.