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Finding the Fourth Proportional to 186,123.50, 256,850.55 and 105,525.26

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Solution

The fourth proportional to 186,123.50, 256,850.55 and 105,525.26 is: 145,624.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,123.50 : 256,850.55 = 105,525.26 : x
  2. Step 2: Convert to fraction form
    186,123.50/256,850.55 = 105,525.26/x
  3. Step 3: Cross multiply
    186,123.50x = 256,850.55 × 105,525.26
  4. Step 4: Simplify right side
    186,123.50x = 27,104,221,069.89
  5. Step 5: Solve for x
    x = 27,104,221,069.89/186,123.50
  6. Step 6: Final answer
    x = 145,624.93

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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.