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Finding the Fourth Proportional to 187,508.79, 258,762.81 and 101,467.77

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Solution

The fourth proportional to 187,508.79, 258,762.81 and 101,467.77 is: 140,025.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,508.79 : 258,762.81 = 101,467.77 : x
  2. Step 2: Convert to fraction form
    187,508.79/258,762.81 = 101,467.77/x
  3. Step 3: Cross multiply
    187,508.79x = 258,762.81 × 101,467.77
  4. Step 4: Simplify right side
    187,508.79x = 26,256,085,289.63
  5. Step 5: Solve for x
    x = 26,256,085,289.63/187,508.79
  6. Step 6: Final answer
    x = 140,025.89

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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.