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Finding the Fourth Proportional to 242,364.31, 334,462.03 and 134,931.58

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Solution

The fourth proportional to 242,364.31, 334,462.03 and 134,931.58 is: 186,205.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,364.31 : 334,462.03 = 134,931.58 : x
  2. Step 2: Convert to fraction form
    242,364.31/334,462.03 = 134,931.58/x
  3. Step 3: Cross multiply
    242,364.31x = 334,462.03 × 134,931.58
  4. Step 4: Simplify right side
    242,364.31x = 45,129,490,157.91
  5. Step 5: Solve for x
    x = 45,129,490,157.91/242,364.31
  6. Step 6: Final answer
    x = 186,205.18

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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.