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Finding the Fourth Proportional to 105,506.91, 158,260.65 and 26,621.13

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Solution

The fourth proportional to 105,506.91, 158,260.65 and 26,621.13 is: 39,931.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,506.91 : 158,260.65 = 26,621.13 : x
  2. Step 2: Convert to fraction form
    105,506.91/158,260.65 = 26,621.13/x
  3. Step 3: Cross multiply
    105,506.91x = 158,260.65 × 26,621.13
  4. Step 4: Simplify right side
    105,506.91x = 4,213,077,337.53
  5. Step 5: Solve for x
    x = 4,213,077,337.53/105,506.91
  6. Step 6: Final answer
    x = 39,931.77

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1.5x scale

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.