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Finding the Fourth Proportional to 141,527.80, 212,116.74 and 71,368.84

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Solution

The fourth proportional to 141,527.80, 212,116.74 and 71,368.84 is: 106,965.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,527.80 : 212,116.74 = 71,368.84 : x
  2. Step 2: Convert to fraction form
    141,527.80/212,116.74 = 71,368.84/x
  3. Step 3: Cross multiply
    141,527.80x = 212,116.74 × 71,368.84
  4. Step 4: Simplify right side
    141,527.80x = 15,138,525,678.38
  5. Step 5: Solve for x
    x = 15,138,525,678.38/141,527.80
  6. Step 6: Final answer
    x = 106,965.03

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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.