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Finding the Fourth Proportional to 292,455, 403,588.44 and 158,319

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Solution

The fourth proportional to 292,455, 403,588.44 and 158,319 is: 218,480.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,455 : 403,588.44 = 158,319 : x
  2. Step 2: Convert to fraction form
    292,455/403,588.44 = 158,319/x
  3. Step 3: Cross multiply
    292,455x = 403,588.44 × 158,319
  4. Step 4: Simplify right side
    292,455x = 63,895,718,232.36
  5. Step 5: Solve for x
    x = 63,895,718,232.36/292,455
  6. Step 6: Final answer
    x = 218,480.51

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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.