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Finding the Fourth Proportional to 133,071.40, 199,607.10 and 63,087.40

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Solution

The fourth proportional to 133,071.40, 199,607.10 and 63,087.40 is: 94,631.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,071.40 : 199,607.10 = 63,087.40 : x
  2. Step 2: Convert to fraction form
    133,071.40/199,607.10 = 63,087.40/x
  3. Step 3: Cross multiply
    133,071.40x = 199,607.10 × 63,087.40
  4. Step 4: Simplify right side
    133,071.40x = 12,592,692,960.54
  5. Step 5: Solve for x
    x = 12,592,692,960.54/133,071.40
  6. Step 6: Final answer
    x = 94,631.10

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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.