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Finding the Fourth Proportional to 191,417.80, 264,153.92 and 106,534.90

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Solution

The fourth proportional to 191,417.80, 264,153.92 and 106,534.90 is: 147,016.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,417.80 : 264,153.92 = 106,534.90 : x
  2. Step 2: Convert to fraction form
    191,417.80/264,153.92 = 106,534.90/x
  3. Step 3: Cross multiply
    191,417.80x = 264,153.92 × 106,534.90
  4. Step 4: Simplify right side
    191,417.80x = 28,141,611,451.81
  5. Step 5: Solve for x
    x = 28,141,611,451.81/191,417.80
  6. Step 6: Final answer
    x = 147,016.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.