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Finding the Fourth Proportional to 105,628.40, 158,468.40 and 34,555.16

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Solution

The fourth proportional to 105,628.40, 158,468.40 and 34,555.16 is: 51,841.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,628.40 : 158,468.40 = 34,555.16 : x
  2. Step 2: Convert to fraction form
    105,628.40/158,468.40 = 34,555.16/x
  3. Step 3: Cross multiply
    105,628.40x = 158,468.40 × 34,555.16
  4. Step 4: Simplify right side
    105,628.40x = 5,475,900,916.94
  5. Step 5: Solve for x
    x = 5,475,900,916.94/105,628.40
  6. Step 6: Final answer
    x = 51,841.18

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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.