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Finding the Fourth Proportional to 364,038.60, 545,960.70 and 111,318.60

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Solution

The fourth proportional to 364,038.60, 545,960.70 and 111,318.60 is: 166,948.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,038.60 : 545,960.70 = 111,318.60 : x
  2. Step 2: Convert to fraction form
    364,038.60/545,960.70 = 111,318.60/x
  3. Step 3: Cross multiply
    364,038.60x = 545,960.70 × 111,318.60
  4. Step 4: Simplify right side
    364,038.60x = 60,775,580,779.02
  5. Step 5: Solve for x
    x = 60,775,580,779.02/364,038.60
  6. Step 6: Final answer
    x = 166,948.18

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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.