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Finding the Fourth Proportional to 210,673.98, 290,707.65 and 124,636.19

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Solution

The fourth proportional to 210,673.98, 290,707.65 and 124,636.19 is: 171,984.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,673.98 : 290,707.65 = 124,636.19 : x
  2. Step 2: Convert to fraction form
    210,673.98/290,707.65 = 124,636.19/x
  3. Step 3: Cross multiply
    210,673.98x = 290,707.65 × 124,636.19
  4. Step 4: Simplify right side
    210,673.98x = 36,232,692,446.32
  5. Step 5: Solve for x
    x = 36,232,692,446.32/210,673.98
  6. Step 6: Final answer
    x = 171,984.66

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.