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Finding the Fourth Proportional to 152,481.47, 210,407.34 and 84,481.46

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Solution

The fourth proportional to 152,481.47, 210,407.34 and 84,481.46 is: 116,574.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,481.47 : 210,407.34 = 84,481.46 : x
  2. Step 2: Convert to fraction form
    152,481.47/210,407.34 = 84,481.46/x
  3. Step 3: Cross multiply
    152,481.47x = 210,407.34 × 84,481.46
  4. Step 4: Simplify right side
    152,481.47x = 17,775,519,277.92
  5. Step 5: Solve for x
    x = 17,775,519,277.92/152,481.47
  6. Step 6: Final answer
    x = 116,574.95

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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.