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Finding the Fourth Proportional to 186,457.18, 257,308.59 and 101,572.42

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Solution

The fourth proportional to 186,457.18, 257,308.59 and 101,572.42 is: 140,168.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,457.18 : 257,308.59 = 101,572.42 : x
  2. Step 2: Convert to fraction form
    186,457.18/257,308.59 = 101,572.42/x
  3. Step 3: Cross multiply
    186,457.18x = 257,308.59 × 101,572.42
  4. Step 4: Simplify right side
    186,457.18x = 26,135,456,173.09
  5. Step 5: Solve for x
    x = 26,135,456,173.09/186,457.18
  6. Step 6: Final answer
    x = 140,168.68

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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.