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Finding the Fourth Proportional to 364,045.32, 546,314.03 and 127,390.05

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Solution

The fourth proportional to 364,045.32, 546,314.03 and 127,390.05 is: 191,171.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,045.32 : 546,314.03 = 127,390.05 : x
  2. Step 2: Convert to fraction form
    364,045.32/546,314.03 = 127,390.05/x
  3. Step 3: Cross multiply
    364,045.32x = 546,314.03 × 127,390.05
  4. Step 4: Simplify right side
    364,045.32x = 69,594,973,009.13
  5. Step 5: Solve for x
    x = 69,594,973,009.13/364,045.32
  6. Step 6: Final answer
    x = 191,171.18

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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.