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Finding the Fourth Proportional to 157,782.51, 217,758.48 and 88,874.22

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Solution

The fourth proportional to 157,782.51, 217,758.48 and 88,874.22 is: 122,656.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,782.51 : 217,758.48 = 88,874.22 : x
  2. Step 2: Convert to fraction form
    157,782.51/217,758.48 = 88,874.22/x
  3. Step 3: Cross multiply
    157,782.51x = 217,758.48 × 88,874.22
  4. Step 4: Simplify right side
    157,782.51x = 19,353,115,058.39
  5. Step 5: Solve for x
    x = 19,353,115,058.39/157,782.51
  6. Step 6: Final answer
    x = 122,656.91

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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.