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Finding the Fourth Proportional to 189,544.80, 261,477.30 and 113,009.91

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Solution

The fourth proportional to 189,544.80, 261,477.30 and 113,009.91 is: 155,897.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,544.80 : 261,477.30 = 113,009.91 : x
  2. Step 2: Convert to fraction form
    189,544.80/261,477.30 = 113,009.91/x
  3. Step 3: Cross multiply
    189,544.80x = 261,477.30 × 113,009.91
  4. Step 4: Simplify right side
    189,544.80x = 29,549,526,140.04
  5. Step 5: Solve for x
    x = 29,549,526,140.04/189,544.80
  6. Step 6: Final answer
    x = 155,897.32

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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.