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Finding the Fourth Proportional to 221,925.60, 332,672.40 and 127,058.40

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Solution

The fourth proportional to 221,925.60, 332,672.40 and 127,058.40 is: 190,463.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,925.60 : 332,672.40 = 127,058.40 : x
  2. Step 2: Convert to fraction form
    221,925.60/332,672.40 = 127,058.40/x
  3. Step 3: Cross multiply
    221,925.60x = 332,672.40 × 127,058.40
  4. Step 4: Simplify right side
    221,925.60x = 42,268,822,868.16
  5. Step 5: Solve for x
    x = 42,268,822,868.16/221,925.60
  6. Step 6: Final answer
    x = 190,463.93

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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.