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Finding the Fourth Proportional to 243,108.41, 335,506.44 and 135,699.35

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Solution

The fourth proportional to 243,108.41, 335,506.44 and 135,699.35 is: 187,274.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,108.41 : 335,506.44 = 135,699.35 : x
  2. Step 2: Convert to fraction form
    243,108.41/335,506.44 = 135,699.35/x
  3. Step 3: Cross multiply
    243,108.41x = 335,506.44 × 135,699.35
  4. Step 4: Simplify right side
    243,108.41x = 45,528,005,828.81
  5. Step 5: Solve for x
    x = 45,528,005,828.81/243,108.41
  6. Step 6: Final answer
    x = 187,274.50

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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.