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Finding the Fourth Proportional to 334,039.80, 501,059.70 and 97,406.40

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Solution

The fourth proportional to 334,039.80, 501,059.70 and 97,406.40 is: 146,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,039.80 : 501,059.70 = 97,406.40 : x
  2. Step 2: Convert to fraction form
    334,039.80/501,059.70 = 97,406.40/x
  3. Step 3: Cross multiply
    334,039.80x = 501,059.70 × 97,406.40
  4. Step 4: Simplify right side
    334,039.80x = 48,806,421,562.08
  5. Step 5: Solve for x
    x = 48,806,421,562.08/334,039.80
  6. Step 6: Final answer
    x = 146,109.60

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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.