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Finding the Fourth Proportional to 186,030.68, 256,722 and 101,147.54

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Solution

The fourth proportional to 186,030.68, 256,722 and 101,147.54 is: 139,583.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,030.68 : 256,722 = 101,147.54 : x
  2. Step 2: Convert to fraction form
    186,030.68/256,722 = 101,147.54/x
  3. Step 3: Cross multiply
    186,030.68x = 256,722 × 101,147.54
  4. Step 4: Simplify right side
    186,030.68x = 25,966,798,763.88
  5. Step 5: Solve for x
    x = 25,966,798,763.88/186,030.68
  6. Step 6: Final answer
    x = 139,583.42

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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.