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Finding the Fourth Proportional to 186,087.78, 256,806.45 and 101,210.31

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Solution

The fourth proportional to 186,087.78, 256,806.45 and 101,210.31 is: 139,673.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,087.78 : 256,806.45 = 101,210.31 : x
  2. Step 2: Convert to fraction form
    186,087.78/256,806.45 = 101,210.31/x
  3. Step 3: Cross multiply
    186,087.78x = 256,806.45 × 101,210.31
  4. Step 4: Simplify right side
    186,087.78x = 25,991,460,414.50
  5. Step 5: Solve for x
    x = 25,991,460,414.50/186,087.78
  6. Step 6: Final answer
    x = 139,673.12

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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.