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Finding the Fourth Proportional to 121,458.40, 182,114.70 and 62,409.40

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Solution

The fourth proportional to 121,458.40, 182,114.70 and 62,409.40 is: 93,576.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,458.40 : 182,114.70 = 62,409.40 : x
  2. Step 2: Convert to fraction form
    121,458.40/182,114.70 = 62,409.40/x
  3. Step 3: Cross multiply
    121,458.40x = 182,114.70 × 62,409.40
  4. Step 4: Simplify right side
    121,458.40x = 11,365,669,158.18
  5. Step 5: Solve for x
    x = 11,365,669,158.18/121,458.40
  6. Step 6: Final answer
    x = 93,576.64

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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.