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Finding the Fourth Proportional to 145,597.21, 218,294.49 and 64,500.19

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Solution

The fourth proportional to 145,597.21, 218,294.49 and 64,500.19 is: 96,705.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,597.21 : 218,294.49 = 64,500.19 : x
  2. Step 2: Convert to fraction form
    145,597.21/218,294.49 = 64,500.19/x
  3. Step 3: Cross multiply
    145,597.21x = 218,294.49 × 64,500.19
  4. Step 4: Simplify right side
    145,597.21x = 14,080,036,080.95
  5. Step 5: Solve for x
    x = 14,080,036,080.95/145,597.21
  6. Step 6: Final answer
    x = 96,705.40

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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.