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Finding the Fourth Proportional to 105,533.70, 158,166.15 and 43,133.70

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Solution

The fourth proportional to 105,533.70, 158,166.15 and 43,133.70 is: 64,645.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,533.70 : 158,166.15 = 43,133.70 : x
  2. Step 2: Convert to fraction form
    105,533.70/158,166.15 = 43,133.70/x
  3. Step 3: Cross multiply
    105,533.70x = 158,166.15 × 43,133.70
  4. Step 4: Simplify right side
    105,533.70x = 6,822,291,264.26
  5. Step 5: Solve for x
    x = 6,822,291,264.26/105,533.70
  6. Step 6: Final answer
    x = 64,645.62

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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.