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Finding the Fourth Proportional to 248,430.86, 372,646.40 and 79,951.16

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Solution

The fourth proportional to 248,430.86, 372,646.40 and 79,951.16 is: 119,926.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,430.86 : 372,646.40 = 79,951.16 : x
  2. Step 2: Convert to fraction form
    248,430.86/372,646.40 = 79,951.16/x
  3. Step 3: Cross multiply
    248,430.86x = 372,646.40 × 79,951.16
  4. Step 4: Simplify right side
    248,430.86x = 29,793,509,686.84
  5. Step 5: Solve for x
    x = 29,793,509,686.84/248,430.86
  6. Step 6: Final answer
    x = 119,926.77

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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.