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Finding the Fourth Proportional to 186,245.31, 257,018.53 and 101,362.98

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Solution

The fourth proportional to 186,245.31, 257,018.53 and 101,362.98 is: 139,880.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,245.31 : 257,018.53 = 101,362.98 : x
  2. Step 2: Convert to fraction form
    186,245.31/257,018.53 = 101,362.98/x
  3. Step 3: Cross multiply
    186,245.31x = 257,018.53 × 101,362.98
  4. Step 4: Simplify right side
    186,245.31x = 26,052,164,116.02
  5. Step 5: Solve for x
    x = 26,052,164,116.02/186,245.31
  6. Step 6: Final answer
    x = 139,880.91

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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.