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Finding the Fourth Proportional to 134,384.95, 201,702.15 and 67,871.79

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Solution

The fourth proportional to 134,384.95, 201,702.15 and 67,871.79 is: 101,870.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,384.95 : 201,702.15 = 67,871.79 : x
  2. Step 2: Convert to fraction form
    134,384.95/201,702.15 = 67,871.79/x
  3. Step 3: Cross multiply
    134,384.95x = 201,702.15 × 67,871.79
  4. Step 4: Simplify right side
    134,384.95x = 13,689,884,958.84
  5. Step 5: Solve for x
    x = 13,689,884,958.84/134,384.95
  6. Step 6: Final answer
    x = 101,870.67

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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.