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Finding the Fourth Proportional to 189,360.76, 261,323.30 and 104,483.28

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Solution

The fourth proportional to 189,360.76, 261,323.30 and 104,483.28 is: 144,189.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,360.76 : 261,323.30 = 104,483.28 : x
  2. Step 2: Convert to fraction form
    189,360.76/261,323.30 = 104,483.28/x
  3. Step 3: Cross multiply
    189,360.76x = 261,323.30 × 104,483.28
  4. Step 4: Simplify right side
    189,360.76x = 27,303,915,524.42
  5. Step 5: Solve for x
    x = 27,303,915,524.42/189,360.76
  6. Step 6: Final answer
    x = 144,189.93

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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.