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Finding the Fourth Proportional to 157,712.00, 217,639.74 and 89,727.51

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Solution

The fourth proportional to 157,712.00, 217,639.74 and 89,727.51 is: 123,822.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,712.00 : 217,639.74 = 89,727.51 : x
  2. Step 2: Convert to fraction form
    157,712.00/217,639.74 = 89,727.51/x
  3. Step 3: Cross multiply
    157,712.00x = 217,639.74 × 89,727.51
  4. Step 4: Simplify right side
    157,712.00x = 19,528,271,083.37
  5. Step 5: Solve for x
    x = 19,528,271,083.37/157,712.00
  6. Step 6: Final answer
    x = 123,822.36

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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.