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Finding the Fourth Proportional to 133,302.81, 199,913.85 and 70,088.88

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Solution

The fourth proportional to 133,302.81, 199,913.85 and 70,088.88 is: 105,112.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,302.81 : 199,913.85 = 70,088.88 : x
  2. Step 2: Convert to fraction form
    133,302.81/199,913.85 = 70,088.88/x
  3. Step 3: Cross multiply
    133,302.81x = 199,913.85 × 70,088.88
  4. Step 4: Simplify right side
    133,302.81x = 14,011,737,842.99
  5. Step 5: Solve for x
    x = 14,011,737,842.99/133,302.81
  6. Step 6: Final answer
    x = 105,112.10

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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.