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Finding the Fourth Proportional to 434,392.92, 651,691.44 and 134,858.16

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Solution

The fourth proportional to 434,392.92, 651,691.44 and 134,858.16 is: 202,318.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,392.92 : 651,691.44 = 134,858.16 : x
  2. Step 2: Convert to fraction form
    434,392.92/651,691.44 = 134,858.16/x
  3. Step 3: Cross multiply
    434,392.92x = 651,691.44 × 134,858.16
  4. Step 4: Simplify right side
    434,392.92x = 87,885,908,486.15
  5. Step 5: Solve for x
    x = 87,885,908,486.15/434,392.92
  6. Step 6: Final answer
    x = 202,318.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.