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Finding the Fourth Proportional to 210,372.76, 290,314.16 and 124,362.74

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Solution

The fourth proportional to 210,372.76, 290,314.16 and 124,362.74 is: 171,620.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,372.76 : 290,314.16 = 124,362.74 : x
  2. Step 2: Convert to fraction form
    210,372.76/290,314.16 = 124,362.74/x
  3. Step 3: Cross multiply
    210,372.76x = 290,314.16 × 124,362.74
  4. Step 4: Simplify right side
    210,372.76x = 36,104,264,968.73
  5. Step 5: Solve for x
    x = 36,104,264,968.73/210,372.76
  6. Step 6: Final answer
    x = 171,620.44

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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.