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Finding the Fourth Proportional to 237,858.86, 328,417.43 and 153,123.54

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Solution

The fourth proportional to 237,858.86, 328,417.43 and 153,123.54 is: 211,421.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,858.86 : 328,417.43 = 153,123.54 : x
  2. Step 2: Convert to fraction form
    237,858.86/328,417.43 = 153,123.54/x
  3. Step 3: Cross multiply
    237,858.86x = 328,417.43 × 153,123.54
  4. Step 4: Simplify right side
    237,858.86x = 50,288,439,479.30
  5. Step 5: Solve for x
    x = 50,288,439,479.30/237,858.86
  6. Step 6: Final answer
    x = 211,421.34

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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.