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Finding the Fourth Proportional to 372,421.80, 558,863.55 and 195,056.10

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Solution

The fourth proportional to 372,421.80, 558,863.55 and 195,056.10 is: 292,705.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,421.80 : 558,863.55 = 195,056.10 : x
  2. Step 2: Convert to fraction form
    372,421.80/558,863.55 = 195,056.10/x
  3. Step 3: Cross multiply
    372,421.80x = 558,863.55 × 195,056.10
  4. Step 4: Simplify right side
    372,421.80x = 109,009,744,495.16
  5. Step 5: Solve for x
    x = 109,009,744,495.16/372,421.80
  6. Step 6: Final answer
    x = 292,705.06

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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.