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Finding the Fourth Proportional to 257,160.68, 385,741.06 and 124,016.12

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Solution

The fourth proportional to 257,160.68, 385,741.06 and 124,016.12 is: 186,024.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,160.68 : 385,741.06 = 124,016.12 : x
  2. Step 2: Convert to fraction form
    257,160.68/385,741.06 = 124,016.12/x
  3. Step 3: Cross multiply
    257,160.68x = 385,741.06 × 124,016.12
  4. Step 4: Simplify right side
    257,160.68x = 47,838,109,585.89
  5. Step 5: Solve for x
    x = 47,838,109,585.89/257,160.68
  6. Step 6: Final answer
    x = 186,024.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.