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Finding the Fourth Proportional to 242,730.80, 363,950.40 and 124,632.80

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Solution

The fourth proportional to 242,730.80, 363,950.40 and 124,632.80 is: 186,874.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,730.80 : 363,950.40 = 124,632.80 : x
  2. Step 2: Convert to fraction form
    242,730.80/363,950.40 = 124,632.80/x
  3. Step 3: Cross multiply
    242,730.80x = 363,950.40 × 124,632.80
  4. Step 4: Simplify right side
    242,730.80x = 45,360,157,413.12
  5. Step 5: Solve for x
    x = 45,360,157,413.12/242,730.80
  6. Step 6: Final answer
    x = 186,874.34

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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.