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Finding the Fourth Proportional to 189,477.01, 261,478.02 and 104,593.87

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Solution

The fourth proportional to 189,477.01, 261,478.02 and 104,593.87 is: 144,339.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,477.01 : 261,478.02 = 104,593.87 : x
  2. Step 2: Convert to fraction form
    189,477.01/261,478.02 = 104,593.87/x
  3. Step 3: Cross multiply
    189,477.01x = 261,478.02 × 104,593.87
  4. Step 4: Simplify right side
    189,477.01x = 27,348,998,031.74
  5. Step 5: Solve for x
    x = 27,348,998,031.74/189,477.01
  6. Step 6: Final answer
    x = 144,339.40

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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.