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Finding the Fourth Proportional to 357,413.12, 536,136.92 and 117,521.71

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Solution

The fourth proportional to 357,413.12, 536,136.92 and 117,521.71 is: 176,288.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,413.12 : 536,136.92 = 117,521.71 : x
  2. Step 2: Convert to fraction form
    357,413.12/536,136.92 = 117,521.71/x
  3. Step 3: Cross multiply
    357,413.12x = 536,136.92 × 117,521.71
  4. Step 4: Simplify right side
    357,413.12x = 63,007,726,962.36
  5. Step 5: Solve for x
    x = 63,007,726,962.36/357,413.12
  6. Step 6: Final answer
    x = 176,288.23

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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.