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Finding the Fourth Proportional to 357,000.72, 535,238.64 and 170,143.44

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Solution

The fourth proportional to 357,000.72, 535,238.64 and 170,143.44 is: 255,090.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,000.72 : 535,238.64 = 170,143.44 : x
  2. Step 2: Convert to fraction form
    357,000.72/535,238.64 = 170,143.44/x
  3. Step 3: Cross multiply
    357,000.72x = 535,238.64 × 170,143.44
  4. Step 4: Simplify right side
    357,000.72x = 91,067,343,430.52
  5. Step 5: Solve for x
    x = 91,067,343,430.52/357,000.72
  6. Step 6: Final answer
    x = 255,090.08

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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.