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Finding the Fourth Proportional to 105,323.70, 157,980.69 and 26,436.18

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Solution

The fourth proportional to 105,323.70, 157,980.69 and 26,436.18 is: 39,653.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,323.70 : 157,980.69 = 26,436.18 : x
  2. Step 2: Convert to fraction form
    105,323.70/157,980.69 = 26,436.18/x
  3. Step 3: Cross multiply
    105,323.70x = 157,980.69 × 26,436.18
  4. Step 4: Simplify right side
    105,323.70x = 4,176,405,957.36
  5. Step 5: Solve for x
    x = 4,176,405,957.36/105,323.70
  6. Step 6: Final answer
    x = 39,653.05

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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.