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Finding the Fourth Proportional to 186,417.77, 257,174.67 and 125,966.39

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Solution

The fourth proportional to 186,417.77, 257,174.67 and 125,966.39 is: 173,778.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,417.77 : 257,174.67 = 125,966.39 : x
  2. Step 2: Convert to fraction form
    186,417.77/257,174.67 = 125,966.39/x
  3. Step 3: Cross multiply
    186,417.77x = 257,174.67 × 125,966.39
  4. Step 4: Simplify right side
    186,417.77x = 32,395,363,493.47
  5. Step 5: Solve for x
    x = 32,395,363,493.47/186,417.77
  6. Step 6: Final answer
    x = 173,778.31

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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.