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Finding the Fourth Proportional to 157,659.33, 217,574.64 and 89,686.05

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Solution

The fourth proportional to 157,659.33, 217,574.64 and 89,686.05 is: 123,769.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,659.33 : 217,574.64 = 89,686.05 : x
  2. Step 2: Convert to fraction form
    157,659.33/217,574.64 = 89,686.05/x
  3. Step 3: Cross multiply
    157,659.33x = 217,574.64 × 89,686.05
  4. Step 4: Simplify right side
    157,659.33x = 19,513,410,041.77
  5. Step 5: Solve for x
    x = 19,513,410,041.77/157,659.33
  6. Step 6: Final answer
    x = 123,769.46

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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.