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Finding the Fourth Proportional to 237,863.94, 328,424.51 and 153,128.63

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Solution

The fourth proportional to 237,863.94, 328,424.51 and 153,128.63 is: 211,428.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,863.94 : 328,424.51 = 153,128.63 : x
  2. Step 2: Convert to fraction form
    237,863.94/328,424.51 = 153,128.63/x
  3. Step 3: Cross multiply
    237,863.94x = 328,424.51 × 153,128.63
  4. Step 4: Simplify right side
    237,863.94x = 50,291,192,866.96
  5. Step 5: Solve for x
    x = 50,291,192,866.96/237,863.94
  6. Step 6: Final answer
    x = 211,428.40

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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.