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Finding the Fourth Proportional to 176,143.76, 243,078.76 and 104,521.92

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Solution

The fourth proportional to 176,143.76, 243,078.76 and 104,521.92 is: 144,240.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,143.76 : 243,078.76 = 104,521.92 : x
  2. Step 2: Convert to fraction form
    176,143.76/243,078.76 = 104,521.92/x
  3. Step 3: Cross multiply
    176,143.76x = 243,078.76 × 104,521.92
  4. Step 4: Simplify right side
    176,143.76x = 25,407,058,706.42
  5. Step 5: Solve for x
    x = 25,407,058,706.42/176,143.76
  6. Step 6: Final answer
    x = 144,240.47

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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.