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Finding the Fourth Proportional to 170,455.86, 235,218.42 and 93,970.98

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Solution

The fourth proportional to 170,455.86, 235,218.42 and 93,970.98 is: 129,674.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,455.86 : 235,218.42 = 93,970.98 : x
  2. Step 2: Convert to fraction form
    170,455.86/235,218.42 = 93,970.98/x
  3. Step 3: Cross multiply
    170,455.86x = 235,218.42 × 93,970.98
  4. Step 4: Simplify right side
    170,455.86x = 22,103,705,441.45
  5. Step 5: Solve for x
    x = 22,103,705,441.45/170,455.86
  6. Step 6: Final answer
    x = 129,674.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.