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Finding the Fourth Proportional to 170,433.86, 235,248.10 and 98,829.86

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Solution

The fourth proportional to 170,433.86, 235,248.10 and 98,829.86 is: 136,413.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,433.86 : 235,248.10 = 98,829.86 : x
  2. Step 2: Convert to fraction form
    170,433.86/235,248.10 = 98,829.86/x
  3. Step 3: Cross multiply
    170,433.86x = 235,248.10 × 98,829.86
  4. Step 4: Simplify right side
    170,433.86x = 23,249,535,364.95
  5. Step 5: Solve for x
    x = 23,249,535,364.95/170,433.86
  6. Step 6: Final answer
    x = 136,413.83

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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.