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Finding the Fourth Proportional to 242,703.16, 334,921.21 and 140,732.91

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Solution

The fourth proportional to 242,703.16, 334,921.21 and 140,732.91 is: 194,206.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,703.16 : 334,921.21 = 140,732.91 : x
  2. Step 2: Convert to fraction form
    242,703.16/334,921.21 = 140,732.91/x
  3. Step 3: Cross multiply
    242,703.16x = 334,921.21 × 140,732.91
  4. Step 4: Simplify right side
    242,703.16x = 47,134,436,152.19
  5. Step 5: Solve for x
    x = 47,134,436,152.19/242,703.16
  6. Step 6: Final answer
    x = 194,206.11

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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.