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Finding the Fourth Proportional to 141,776.56, 212,695.35 and 70,737.40

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Solution

The fourth proportional to 141,776.56, 212,695.35 and 70,737.40 is: 106,121.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,776.56 : 212,695.35 = 70,737.40 : x
  2. Step 2: Convert to fraction form
    141,776.56/212,695.35 = 70,737.40/x
  3. Step 3: Cross multiply
    141,776.56x = 212,695.35 × 70,737.40
  4. Step 4: Simplify right side
    141,776.56x = 15,045,516,051.09
  5. Step 5: Solve for x
    x = 15,045,516,051.09/141,776.56
  6. Step 6: Final answer
    x = 106,121.32

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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.