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Finding the Fourth Proportional to 157,455.51, 217,223.19 and 92,899.11

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Solution

The fourth proportional to 157,455.51, 217,223.19 and 92,899.11 is: 128,162.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,455.51 : 217,223.19 = 92,899.11 : x
  2. Step 2: Convert to fraction form
    157,455.51/217,223.19 = 92,899.11/x
  3. Step 3: Cross multiply
    157,455.51x = 217,223.19 × 92,899.11
  4. Step 4: Simplify right side
    157,455.51x = 20,179,841,022.36
  5. Step 5: Solve for x
    x = 20,179,841,022.36/157,455.51
  6. Step 6: Final answer
    x = 128,162.18

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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.