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Finding the Fourth Proportional to 157,404.93, 217,219.08 and 85,784.91

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Solution

The fourth proportional to 157,404.93, 217,219.08 and 85,784.91 is: 118,383.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,404.93 : 217,219.08 = 85,784.91 : x
  2. Step 2: Convert to fraction form
    157,404.93/217,219.08 = 85,784.91/x
  3. Step 3: Cross multiply
    157,404.93x = 217,219.08 × 85,784.91
  4. Step 4: Simplify right side
    157,404.93x = 18,634,119,228.08
  5. Step 5: Solve for x
    x = 18,634,119,228.08/157,404.93
  6. Step 6: Final answer
    x = 118,383.33

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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.