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Finding the Fourth Proportional to 236,478.72, 354,779.52 and 70,268.16

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Solution

The fourth proportional to 236,478.72, 354,779.52 and 70,268.16 is: 105,420.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,478.72 : 354,779.52 = 70,268.16 : x
  2. Step 2: Convert to fraction form
    236,478.72/354,779.52 = 70,268.16/x
  3. Step 3: Cross multiply
    236,478.72x = 354,779.52 × 70,268.16
  4. Step 4: Simplify right side
    236,478.72x = 24,929,704,076.08
  5. Step 5: Solve for x
    x = 24,929,704,076.08/236,478.72
  6. Step 6: Final answer
    x = 105,420.50

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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.